400371180 has 96 divisors (see below), whose sum is σ = 1226292480. Its totient is φ = 96794880.

The previous prime is 400371157. The next prime is 400371203. The reversal of 400371180 is 81173004.

It is an interprime number because it is at equal distance from previous prime (400371157) and next prime (400371203).

It is a self number, because there is not a number n which added to its sum of digits gives 400371180.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360466 + ... + 361574.

It is an arithmetic number, because the mean of its divisors is an integer number (12773880).

Almost surely, 2^400371180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400371180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613146240).

400371180 is an abundant number, since it is smaller than the sum of its proper divisors (825921300).

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

400371180 is a wasteful number, since it uses less digits than its factorization.

400371180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 400371180 is about 20009.2773482702. The cubic root of 400371180 is about 737.0341357377.

The spelling of 400371180 in words is "four hundred million, three hundred seventy-one thousand, one hundred eighty".