40492 has 12 divisors (see below), whose sum is σ = 72576. Its totient is φ = 19760.

The previous prime is 40487. The next prime is 40493. The reversal of 40492 is 29404.

40492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (40493) by changing a digit.

40492 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, 117 + ... + 307.

It is an arithmetic number, because the mean of its divisors is an integer number (6048).

2⁴⁰⁴⁹² is an apocalyptic number.

It is an amenable number.

40492 is a deficient number, since it is larger than the sum of its proper divisors (32084).

40492 is a wasteful number, since it uses less digits than its factorization.

40492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 246 counting only the distinct ones).

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

The square root of 40492 is about 201.2262408335. The cubic root of 40492 is about 34.3391659638.

Subtracting from 40492 its product of nonzero digits (288), we obtain a palindrome (40204).

Adding to 40492 its reverse (29404), we get a palindrome (69896).

It can be divided in two parts, 404 and 92, that added together give a triangular number (496 = T₃₁).

The spelling of 40492 in words is "forty thousand, four hundred ninety-two".