7340659821 has 24 divisors (see below), whose sum is σ = 11586897504. Its totient is φ = 4441270560.

The previous prime is 7340659813. The next prime is 7340659853. The reversal of 7340659821 is 1289560437.

7340659821 is a `hidden beast` number, since 7 + 34 + 0 + 6 + 598 + 21 = 666.

7340659821 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7340659821 - 2³ = 7340659813 is a prime.

It is a super-3 number, since 3×7340659821³ (a number of 31 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

7340659821 is strictly pandigital in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7340659871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5046 + ... + 121271.

It is an arithmetic number, because the mean of its divisors is an integer number (482787396).

It is a 1-persistent number, because it is pandigital, but 2⋅7340659821 = 14681319642 is not.

Almost surely, 2^7340659821 is an apocalyptic number.

It is an amenable number.

7340659821 is a deficient number, since it is larger than the sum of its proper divisors (4246237683).

7340659821 is a wasteful number, since it uses less digits than its factorization.

7340659821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126921 (or 126918 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 7340659821 is about 85677.6506505635. The cubic root of 7340659821 is about 1943.4723497145.

The spelling of 7340659821 in words is "seven billion, three hundred forty million, six hundred fifty-nine thousand, eight hundred twenty-one".