400609088 has 28 divisors (see below), whose sum is σ = 867229152. Its totient is φ = 182094720.

The previous prime is 400609081. The next prime is 400609133. The reversal of 400609088 is 880906004.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400609081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283820 + ... + 285227.

Almost surely, 2^400609088 is an apocalyptic number.

It is an amenable number.

400609088 is an abundant number, since it is smaller than the sum of its proper divisors (466620064).

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

400609088 is a wasteful number, since it uses less digits than its factorization.

400609088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569070 (or 569060 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 400609088 is about 20015.2214077187. The cubic root of 400609088 is about 737.1800932942.

The spelling of 400609088 in words is "four hundred million, six hundred nine thousand, eighty-eight".