398249152452 has 72 divisors (see below), whose sum is σ = 1062083422400. Its totient is φ = 125476319808.

The previous prime is 398249152451. The next prime is 398249152517. The reversal of 398249152452 is 254251942893.

398249152452 is a `hidden beast` number, since 3 + 9 + 8 + 24 + 91 + 524 + 5 + 2 = 666.

It is a super-2 number, since 2×398249152452² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (398249152451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362863 + ... + 963414.

Almost surely, 2^398249152452 is an apocalyptic number.

It is an amenable number.

398249152452 is an abundant number, since it is smaller than the sum of its proper divisors (663834269948).

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

398249152452 is a wasteful number, since it uses less digits than its factorization.

398249152452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326745 (or 1326740 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 398249152452 in words is "three hundred ninety-eight billion, two hundred forty-nine million, one hundred fifty-two thousand, four hundred fifty-two".