400827390 has 16 divisors (see below), whose sum is σ = 961985808. Its totient is φ = 106887296.

The previous prime is 400827389. The next prime is 400827397. The reversal of 400827390 is 93728004.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400827397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6680427 + ... + 6680486.

It is an arithmetic number, because the mean of its divisors is an integer number (60124113).

Almost surely, 2^400827390 is an apocalyptic number.

400827390 is an abundant number, since it is smaller than the sum of its proper divisors (561158418).

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

400827390 is a wasteful number, since it uses less digits than its factorization.

400827390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13360923.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 400827390 is about 20020.6740645763. The cubic root of 400827390 is about 737.3139716569.

The spelling of 400827390 in words is "four hundred million, eight hundred twenty-seven thousand, three hundred ninety".