400117132 has 12 divisors (see below), whose sum is σ = 702931320. Its totient is φ = 199279616.

The previous prime is 400117129. The next prime is 400117139. The reversal of 400117132 is 231711004.

It is a super-5 number, since 5×400117132⁵ (a number of 44 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (400117139) 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, 193582 + ... + 195637.

It is an arithmetic number, because the mean of its divisors is an integer number (58577610).

Almost surely, 2^400117132 is an apocalyptic number.

It is an amenable number.

400117132 is a deficient number, since it is larger than the sum of its proper divisors (302814188).

400117132 is a wasteful number, since it uses less digits than its factorization.

400117132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389480 (or 389478 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 400117132 is about 20002.9280856579. The cubic root of 400117132 is about 736.8782123721.

Adding to 400117132 its reverse (231711004), we get a palindrome (631828136).

The spelling of 400117132 in words is "four hundred million, one hundred seventeen thousand, one hundred thirty-two".