400818096 has 240 divisors, whose sum is σ = 1346961408. Its totient is φ = 108864000.

The previous prime is 400818073. The next prime is 400818101. The reversal of 400818096 is 690818004.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 400818096.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3155985 + ... + 3156111.

Almost surely, 2^400818096 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 400818096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673480704).

400818096 is an abundant number, since it is smaller than the sum of its proper divisors (946143312).

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

400818096 is a wasteful number, since it uses less digits than its factorization.

400818096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 400818096 is about 20020.4419531638. The cubic root of 400818096 is about 737.3082729037.

The spelling of 400818096 in words is "four hundred million, eight hundred eighteen thousand, ninety-six".