400130536 has 16 divisors (see below), whose sum is σ = 807956100. Its totient is φ = 184675584.

The previous prime is 400130431. The next prime is 400130551. The reversal of 400130536 is 635031004.

It can be written as a sum of positive squares in 2 ways, for example, as 372104100 + 28026436 = 19290^2 + 5294^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1923601 + ... + 1923808.

Almost surely, 2^400130536 is an apocalyptic number.

It is an amenable number.

400130536 is an abundant number, since it is smaller than the sum of its proper divisors (407825564).

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

400130536 is a wasteful number, since it uses less digits than its factorization.

400130536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3847428 (or 3847424 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 400130536 is about 20003.2631337989. The cubic root of 400130536 is about 736.8864408002.

The spelling of 400130536 in words is "four hundred million, one hundred thirty thousand, five hundred thirty-six".