400111472 has 10 divisors (see below), whose sum is σ = 775216008. Its totient is φ = 200055728.

The previous prime is 400111457. The next prime is 400111477. The reversal of 400111472 is 274111004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400111477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12503468 + ... + 12503499.

Almost surely, 2^400111472 is an apocalyptic number.

It is an amenable number.

400111472 is a deficient number, since it is larger than the sum of its proper divisors (375104536).

400111472 is a wasteful number, since it uses less digits than its factorization.

400111472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25006975 (or 25006969 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 400111472 is about 20002.7866058707. The cubic root of 400111472 is about 736.8747377642.

Adding to 400111472 its reverse (274111004), we get a palindrome (674222476).

The spelling of 400111472 in words is "four hundred million, one hundred eleven thousand, four hundred seventy-two".