398641920714 has 20 divisors (see below), whose sum is σ = 893253193074. Its totient is φ = 132880640184.

The previous prime is 398641920697. The next prime is 398641920739. The reversal of 398641920714 is 417029146893.

398641920714 is a `hidden beast` number, since 3 + 9 + 8 + 6 + 419 + 207 + 14 = 666.

It can be written as a sum of positive squares in only one way, i.e., 362665315089 + 35976605625 = 602217^2 + 189675^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1230376137 + ... + 1230376460.

Almost surely, 2^398641920714 is an apocalyptic number.

398641920714 is an abundant number, since it is smaller than the sum of its proper divisors (494611272360).

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

398641920714 is a wasteful number, since it uses less digits than its factorization.

398641920714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460752611 (or 2460752602 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 398641920714 in words is "three hundred ninety-eight billion, six hundred forty-one million, nine hundred twenty thousand, seven hundred fourteen".