40792491 has 10 divisors (see below), whose sum is σ = 60937052. Its totient is φ = 27194940.

The previous prime is 40792447. The next prime is 40792517. The reversal of 40792491 is 19429704.

40792491 is a `hidden beast` number, since 407 + 9 + 249 + 1 = 666.

It is not a de Polignac number, because 40792491 - 2⁹ = 40791979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40792421) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 251725 + ... + 251886.

Almost surely, 2^40792491 is an apocalyptic number.

40792491 is a deficient number, since it is larger than the sum of its proper divisors (20144561).

40792491 is an equidigital number, since it uses as much as digits as its factorization.

40792491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503623 (or 503614 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 40792491 is about 6386.8999522460. The cubic root of 40792491 is about 344.2390031659.

The spelling of 40792491 in words is "forty million, seven hundred ninety-two thousand, four hundred ninety-one".