40842723 has 32 divisors (see below), whose sum is σ = 59270400. Its totient is φ = 24938496.

The previous prime is 40842713. The next prime is 40842727. The reversal of 40842723 is 32724804.

It is not a de Polignac number, because 40842723 - 2⁴ = 40842707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40842727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421011 + ... + 421107.

It is an arithmetic number, because the mean of its divisors is an integer number (1852200).

Almost surely, 2^40842723 is an apocalyptic number.

40842723 is a deficient number, since it is larger than the sum of its proper divisors (18427677).

40842723 is a wasteful number, since it uses less digits than its factorization.

40842723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 40842723 is about 6390.8311666011. The cubic root of 40842723 is about 344.3802441991.

The spelling of 40842723 in words is "forty million, eight hundred forty-two thousand, seven hundred twenty-three".