400340038 has 16 divisors (see below), whose sum is σ = 726668064. Its totient is φ = 161481600.

The previous prime is 400340027. The next prime is 400340053. The reversal of 400340038 is 830043004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840813 + ... + 841288.

It is an arithmetic number, because the mean of its divisors is an integer number (45416754).

Almost surely, 2^400340038 is an apocalyptic number.

400340038 is a deficient number, since it is larger than the sum of its proper divisors (326328026).

400340038 is a wasteful number, since it uses less digits than its factorization.

400340038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682127.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 400340038 is about 20008.4991441137. The cubic root of 400340038 is about 737.0150257107.

The spelling of 400340038 in words is "four hundred million, three hundred forty thousand, thirty-eight".