40842724 has 24 divisors (see below), whose sum is σ = 78854328. Its totient is φ = 18389760.

The previous prime is 40842713. The next prime is 40842727. The reversal of 40842724 is 42724804.

It can be written as a sum of positive squares in 4 ways, for example, as 5914624 + 34928100 = 2432^2 + 5910^2 .

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 7 ways as a sum of consecutive naturals, for example, 7447 + ... + 11710.

It is an arithmetic number, because the mean of its divisors is an integer number (3285597).

Almost surely, 2^40842724 is an apocalyptic number.

It is an amenable number.

40842724 is a deficient number, since it is larger than the sum of its proper divisors (38011604).

40842724 is a wasteful number, since it uses less digits than its factorization.

40842724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19215 (or 19213 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 40842724 is about 6390.8312448382. The cubic root of 40842724 is about 344.3802470097.

The spelling of 40842724 in words is "forty million, eight hundred forty-two thousand, seven hundred twenty-four".