400406482 has 8 divisors (see below), whose sum is σ = 686411136. Its totient is φ = 171602772.

The previous prime is 400406477. The next prime is 400406483. The reversal of 400406482 is 284604004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 400406482.

It is not an unprimeable number, because it can be changed into a prime (400406483) 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, 14300218 + ... + 14300245.

It is an arithmetic number, because the mean of its divisors is an integer number (85801392).

Almost surely, 2^400406482 is an apocalyptic number.

400406482 is a deficient number, since it is larger than the sum of its proper divisors (286004654).

400406482 is a wasteful number, since it uses less digits than its factorization.

400406482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28600472.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 400406482 is about 20010.1594696294. The cubic root of 400406482 is about 737.0557973155.

The spelling of 400406482 in words is "four hundred million, four hundred six thousand, four hundred eighty-two".