40792291 has 4 divisors (see below), whose sum is σ = 40820272. Its totient is φ = 40764312.

The previous prime is 40792289. The next prime is 40792303. The reversal of 40792291 is 19229704.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40792291 - 2¹ = 40792289 is a prime.

It is a super-2 number, since 2×40792291² = 3328022010057362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40792261) 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, 11676 + ... + 14761.

It is an arithmetic number, because the mean of its divisors is an integer number (10205068).

Almost surely, 2^40792291 is an apocalyptic number.

40792291 is a deficient number, since it is larger than the sum of its proper divisors (27981).

40792291 is a wasteful number, since it uses less digits than its factorization.

40792291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27980.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 40792291 is about 6386.8842951787. The cubic root of 40792291 is about 344.2384405794.

The spelling of 40792291 in words is "forty million, seven hundred ninety-two thousand, two hundred ninety-one".