400753136 has 40 divisors (see below), whose sum is σ = 889943040. Its totient is φ = 171255744.

The previous prime is 400753099. The next prime is 400753139. The reversal of 400753136 is 631357004.

It is a junction number, because it is equal to n+sod(n) for n = 400753099 and 400753108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400753139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35225 + ... + 45191.

It is an arithmetic number, because the mean of its divisors is an integer number (22248576).

Almost surely, 2^400753136 is an apocalyptic number.

It is an amenable number.

400753136 is an abundant number, since it is smaller than the sum of its proper divisors (489189904).

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

400753136 is a wasteful number, since it uses less digits than its factorization.

400753136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10341 (or 10335 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 400753136 is about 20018.8195456176. The cubic root of 400753136 is about 737.2684392622.

The spelling of 400753136 in words is "four hundred million, seven hundred fifty-three thousand, one hundred thirty-six".