400360290 has 32 divisors (see below), whose sum is σ = 1048216896. Its totient is φ = 97056960.

The previous prime is 400360271. The next prime is 400360307. The reversal of 400360290 is 92063004.

It is a self number, because there is not a number n which added to its sum of digits gives 400360290.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606277 + ... + 606936.

It is an arithmetic number, because the mean of its divisors is an integer number (32756778).

Almost surely, 2^400360290 is an apocalyptic number.

400360290 is an abundant number, since it is smaller than the sum of its proper divisors (647856606).

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

400360290 is a wasteful number, since it uses less digits than its factorization.

400360290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213234.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 400360290 is about 20009.0052226491. The cubic root of 400360290 is about 737.0274532933.

The spelling of 400360290 in words is "four hundred million, three hundred sixty thousand, two hundred ninety".