240164421 has 8 divisors (see below), whose sum is σ = 365964864. Its totient is φ = 137236800.

The previous prime is 240164383. The next prime is 240164461. The reversal of 240164421 is 124461042.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240164421 - 2⁶ = 240164357 is a prime.

It is a super-3 number, since 3×240164421³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 240164391 and 240164400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240164461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5718180 + ... + 5718221.

It is an arithmetic number, because the mean of its divisors is an integer number (45745608).

Almost surely, 2^240164421 is an apocalyptic number.

240164421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

240164421 is a deficient number, since it is larger than the sum of its proper divisors (125800443).

240164421 is a wasteful number, since it uses less digits than its factorization.

240164421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11436411.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 240164421 is about 15497.2391412148. The cubic root of 240164421 is about 621.5883838716.

The spelling of 240164421 in words is "two hundred forty million, one hundred sixty-four thousand, four hundred twenty-one".