378864031 has 18 divisors (see below), whose sum is σ = 477239112. Its totient is φ = 299754000.

The previous prime is 378864007. The next prime is 378864043. The reversal of 378864031 is 130468873.

It is not a de Polignac number, because 378864031 - 2⁹ = 378863519 is a prime.

It is a super-2 number, since 2×378864031² = 287075907971137922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378864001) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14595 + ... + 31156.

It is an arithmetic number, because the mean of its divisors is an integer number (26513284).

Almost surely, 2^378864031 is an apocalyptic number.

378864031 is a deficient number, since it is larger than the sum of its proper divisors (98375081).

378864031 is a wasteful number, since it uses less digits than its factorization.

378864031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45791 (or 45771 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 378864031 is about 19464.4298914713. The cubic root of 378864031 is about 723.5931694553.

The spelling of 378864031 in words is "three hundred seventy-eight million, eight hundred sixty-four thousand, thirty-one".