400412460 has 96 divisors (see below), whose sum is σ = 1348784640. Its totient is φ = 86704128.

The previous prime is 400412447. The next prime is 400412473. The reversal of 400412460 is 64214004.

It is an interprime number because it is at equal distance from previous prime (400412447) and next prime (400412473).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17109 + ... + 33068.

It is an arithmetic number, because the mean of its divisors is an integer number (14049840).

Almost surely, 2^400412460 is an apocalyptic number.

It is an amenable number.

400412460 is an abundant number, since it is smaller than the sum of its proper divisors (948372180).

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

400412460 is a wasteful number, since it uses less digits than its factorization.

400412460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50215 (or 50213 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 400412460 is about 20010.3088431938. The cubic root of 400412460 is about 737.0594653361.

Adding to 400412460 its reverse (64214004), we get a palindrome (464626464).

The spelling of 400412460 in words is "four hundred million, four hundred twelve thousand, four hundred sixty".