40704491 has 4 divisors (see below), whose sum is σ = 41570592. Its totient is φ = 39838392.

The previous prime is 40704473. The next prime is 40704493. The reversal of 40704491 is 19440704.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40704491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40704493) 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, 432980 + ... + 433073.

It is an arithmetic number, because the mean of its divisors is an integer number (10392648).

Almost surely, 2^40704491 is an apocalyptic number.

40704491 is a deficient number, since it is larger than the sum of its proper divisors (866101).

40704491 is an equidigital number, since it uses as much as digits as its factorization.

40704491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866100.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 40704491 is about 6380.0071316575. The cubic root of 40704491 is about 343.9912872996.

The spelling of 40704491 in words is "forty million, seven hundred four thousand, four hundred ninety-one".