40006704 has 40 divisors (see below), whose sum is σ = 108792640. Its totient is φ = 12633408.

The previous prime is 40006699. The next prime is 40006717. The reversal of 40006704 is 40760004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21022 + ... + 22845.

It is an arithmetic number, because the mean of its divisors is an integer number (2719816).

Almost surely, 2^40006704 is an apocalyptic number.

It is an amenable number.

40006704 is an abundant number, since it is smaller than the sum of its proper divisors (68785936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40006704 is a wasteful number, since it uses less digits than its factorization.

40006704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43897 (or 43891 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 40006704 is about 6325.0852958676. The cubic root of 40006704 is about 342.0142943993.

Adding to 40006704 its reverse (40760004), we get a palindrome (80766708).

The spelling of 40006704 in words is "forty million, six thousand, seven hundred four".