400755108 has 72 divisors (see below), whose sum is σ = 1026808608. Its totient is φ = 121575168.

The previous prime is 400755097. The next prime is 400755119. The reversal of 400755108 is 801557004.

It is an interprime number because it is at equal distance from previous prime (400755097) and next prime (400755119).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146691 + ... + 149397.

Almost surely, 2^400755108 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 400755108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (513404304).

400755108 is an abundant number, since it is smaller than the sum of its proper divisors (626053500).

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

400755108 is a wasteful number, since it uses less digits than its factorization.

400755108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813 (or 2798 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 400755108 is about 20018.8687992104. The cubic root of 400755108 is about 737.2696485611.

The spelling of 400755108 in words is "four hundred million, seven hundred fifty-five thousand, one hundred eight".