40708642 has 32 divisors (see below), whose sum is σ = 71898624. Its totient is φ = 17107200.

The previous prime is 40708637. The next prime is 40708649. The reversal of 40708642 is 24680704.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a zygodrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (40708649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12217 + ... + 15187.

It is an arithmetic number, because the mean of its divisors is an integer number (2246832).

Almost surely, 2^40708642 is an apocalyptic number.

40708642 is a deficient number, since it is larger than the sum of its proper divisors (31189982).

40708642 is a wasteful number, since it uses less digits than its factorization.

40708642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 40708642 is about 6380.3324364801. The cubic root of 40708642 is about 344.0029801887.

The spelling of 40708642 in words is "forty million, seven hundred eight thousand, six hundred forty-two".