400562379 has 24 divisors (see below), whose sum is σ = 661770720. Its totient is φ = 228711168.

The previous prime is 400562369. The next prime is 400562401. The reversal of 400562379 is 973265004.

It is not a de Polignac number, because 400562379 - 2⁹ = 400561867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400562339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152227 + ... + 154835.

It is an arithmetic number, because the mean of its divisors is an integer number (27573780).

Almost surely, 2^400562379 is an apocalyptic number.

400562379 is a deficient number, since it is larger than the sum of its proper divisors (261208341).

400562379 is a wasteful number, since it uses less digits than its factorization.

400562379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059 (or 5056 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 400562379 is about 20014.0545367499. The cubic root of 400562379 is about 737.1514416864.

The spelling of 400562379 in words is "four hundred million, five hundred sixty-two thousand, three hundred seventy-nine".