395452640120 has 64 divisors (see below), whose sum is σ = 919648235520. Its totient is φ = 152950194304.

The previous prime is 395452640117. The next prime is 395452640147. The reversal of 395452640120 is 21046254593.

It is a super-2 number, since 2×395452640120² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1111112 + ... + 1423191.

It is an arithmetic number, because the mean of its divisors is an integer number (14369503680).

Almost surely, 2^395452640120 is an apocalyptic number.

It is an amenable number.

395452640120 is an abundant number, since it is smaller than the sum of its proper divisors (524195595400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395452640120 is a wasteful number, since it uses less digits than its factorization.

395452640120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534444 (or 2534440 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 395452640120 in words is "three hundred ninety-five billion, four hundred fifty-two million, six hundred forty thousand, one hundred twenty".