400996260 has 288 divisors, whose sum is σ = 1475615232. Its totient is φ = 86169600.

The previous prime is 400996243. The next prime is 400996291. The reversal of 400996260 is 62699004.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2926912 + ... + 2927048.

It is an arithmetic number, because the mean of its divisors is an integer number (5123664).

Almost surely, 2^400996260 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 400996260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737807616).

400996260 is an abundant number, since it is smaller than the sum of its proper divisors (1074618972).

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

400996260 is a wasteful number, since it uses less digits than its factorization.

400996260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 400996260 is about 20024.8910109394. The cubic root of 400996260 is about 737.4175014489.

The spelling of 400996260 in words is "four hundred million, nine hundred ninety-six thousand, two hundred sixty".