406492 has 12 divisors (see below), whose sum is σ = 717136. Its totient is φ = 201600.

The previous prime is 406481. The next prime is 406499. The reversal of 406492 is 294604.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268 + ... + 940.

2⁴⁰⁶⁴⁹² is an apocalyptic number.

It is an amenable number.

406492 is a deficient number, since it is larger than the sum of its proper divisors (310644).

406492 is a wasteful number, since it uses less digits than its factorization.

406492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 406492 is about 637.5672513547. The cubic root of 406492 is about 74.0771049254.

It can be divided in two parts, 406 and 492, that added together give a palindrome (898).

The spelling of 406492 in words is "four hundred six thousand, four hundred ninety-two".