398057663047248 has 30 divisors (see below), whose sum is σ = 1114008598667354. Its totient is φ = 132685887682368.

The previous prime is 398057663047207. The next prime is 398057663047279. The reversal of 398057663047248 is 842740366750893.

398057663047248 is a `hidden beast` number, since 3 + 9 + 8 + 0 + 5 + 76 + 6 + 304 + 7 + 248 = 666.

It can be written as a sum of positive squares in only one way, i.e., 397794727923264 + 262935123984 = 19944792^2 + 512772^2 .

It is a super-2 number, since 2×398057663047248² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1382144663215 + ... + 1382144663502.

Almost surely, 2^{398057663047248} is an apocalyptic number.

It is an amenable number.

398057663047248 is an abundant number, since it is smaller than the sum of its proper divisors (715950935620106).

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

398057663047248 is a wasteful number, since it uses less digits than its factorization.

398057663047248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764289326731 (or 2764289326722 counting only the distinct ones).

The product of its (nonzero) digits is 1463132160, while the sum is 72.

The spelling of 398057663047248 in words is "three hundred ninety-eight trillion, fifty-seven billion, six hundred sixty-three million, forty-seven thousand, two hundred forty-eight".