381031444402 has 64 divisors (see below), whose sum is σ = 688501223424. Its totient is φ = 154759308480.

The previous prime is 381031444379. The next prime is 381031444411. The reversal of 381031444402 is 204444130183.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2990163 + ... + 3114985.

It is an arithmetic number, because the mean of its divisors is an integer number (10757831616).

Almost surely, 2^381031444402 is an apocalyptic number.

381031444402 is a deficient number, since it is larger than the sum of its proper divisors (307469779022).

381031444402 is a wasteful number, since it uses less digits than its factorization.

381031444402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125023.

The product of its (nonzero) digits is 36864, while the sum is 34.

Adding to 381031444402 its reverse (204444130183), we get a palindrome (585475574585).

The spelling of 381031444402 in words is "three hundred eighty-one billion, thirty-one million, four hundred forty-four thousand, four hundred two".