398034381354 has 48 divisors (see below), whose sum is σ = 852712491168. Its totient is φ = 123818976864.

The previous prime is 398034381319. The next prime is 398034381401. The reversal of 398034381354 is 453183430893.

It is a junction number, because it is equal to n+sod(n) for n = 398034381297 and 398034381306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1226257 + ... + 1516500.

It is an arithmetic number, because the mean of its divisors is an integer number (17764843566).

Almost surely, 2^398034381354 is an apocalyptic number.

398034381354 is an abundant number, since it is smaller than the sum of its proper divisors (454678109814).

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

398034381354 is a wasteful number, since it uses less digits than its factorization.

398034381354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742867 (or 2742848 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 398034381354 in words is "three hundred ninety-eight billion, thirty-four million, three hundred eighty-one thousand, three hundred fifty-four".