6350440821 has 8 divisors (see below), whose sum is σ = 8471886144. Its totient is φ = 4231311360.

The previous prime is 6350440801. The next prime is 6350440849. The reversal of 6350440821 is 1280440536.

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

It is not a de Polignac number, because 6350440821 - 2¹³ = 6350432629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6350440801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572556 + ... + 583541.

It is an arithmetic number, because the mean of its divisors is an integer number (1058985768).

Almost surely, 2^6350440821 is an apocalyptic number.

It is an amenable number.

6350440821 is a deficient number, since it is larger than the sum of its proper divisors (2121445323).

6350440821 is a wasteful number, since it uses less digits than its factorization.

6350440821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157931.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 6350440821 is about 79689.6531614990. The cubic root of 6350440821 is about 1851.8307487953.

The spelling of 6350440821 in words is "six billion, three hundred fifty million, four hundred forty thousand, eight hundred twenty-one".