400072074 has 32 divisors (see below), whose sum is σ = 842624640. Its totient is φ = 126384192.

The previous prime is 400072073. The next prime is 400072103. The reversal of 400072074 is 470270004.

It is a super-2 number, since 2×400072074² = 320115328789322952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400072073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1744 + ... + 28340.

It is an arithmetic number, because the mean of its divisors is an integer number (26332020).

Almost surely, 2^400072074 is an apocalyptic number.

400072074 is an abundant number, since it is smaller than the sum of its proper divisors (442552566).

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

400072074 is a wasteful number, since it uses less digits than its factorization.

400072074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26734.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 400072074 is about 20001.8017688407. The cubic root of 400072074 is about 736.8505508848.

The spelling of 400072074 in words is "four hundred million, seventy-two thousand, seventy-four".