400492 has 12 divisors (see below), whose sum is σ = 713160. Its totient is φ = 196736.

The previous prime is 400481. The next prime is 400523. The reversal of 400492 is 294004.

400492 is a modest number, since divided by 492 gives 4 as remainder.

It is an unprimeable number.

400492 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613 + ... + 1084.

It is an arithmetic number, because the mean of its divisors is an integer number (59430).

2⁴⁰⁰⁴⁹² is an apocalyptic number.

It is an amenable number.

400492 is a deficient number, since it is larger than the sum of its proper divisors (312668).

400492 is a wasteful number, since it uses less digits than its factorization.

400492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760 (or 1758 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 400492 is about 632.8443726541. The cubic root of 400492 is about 73.7108266538.

Adding to 400492 its reverse (294004), we get a palindrome (694496).

It can be divided in two parts, 4004 and 92, that added together give a 12-th power (4096 = 2¹²).

The spelling of 400492 in words is "four hundred thousand, four hundred ninety-two".