400132552 has 32 divisors (see below), whose sum is σ = 792885600. Its totient is φ = 188780544.

The previous prime is 400132549. The next prime is 400132561. The reversal of 400132552 is 255231004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33943 + ... + 44185.

It is an arithmetic number, because the mean of its divisors is an integer number (24777675).

Almost surely, 2^400132552 is an apocalyptic number.

It is an amenable number.

400132552 is a deficient number, since it is larger than the sum of its proper divisors (392753048).

400132552 is a wasteful number, since it uses less digits than its factorization.

400132552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10525 (or 10521 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 400132552 is about 20003.3135255137. The cubic root of 400132552 is about 736.8876783635.

Adding to 400132552 its reverse (255231004), we get a palindrome (655363556).

The spelling of 400132552 in words is "four hundred million, one hundred thirty-two thousand, five hundred fifty-two".