400069974 has 16 divisors (see below), whose sum is σ = 821765808. Its totient is φ = 129752352.

The previous prime is 400069961. The next prime is 400069991. The reversal of 400069974 is 479960004.

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, 900837 + ... + 901280.

It is an arithmetic number, because the mean of its divisors is an integer number (51360363).

Almost surely, 2^400069974 is an apocalyptic number.

400069974 is an abundant number, since it is smaller than the sum of its proper divisors (421695834).

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

400069974 is a wasteful number, since it uses less digits than its factorization.

400069974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802159.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 400069974 is about 20001.7492735011. The cubic root of 400069974 is about 736.8492616263.

The spelling of 400069974 in words is "four hundred million, sixty-nine thousand, nine hundred seventy-four".