40309704 has 32 divisors (see below), whose sum is σ = 111972000. Its totient is φ = 13436496.

The previous prime is 40309693. The next prime is 40309729. The reversal of 40309704 is 40790304.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 93094 + ... + 93525.

It is an arithmetic number, because the mean of its divisors is an integer number (3499125).

Almost surely, 2^40309704 is an apocalyptic number.

It is an amenable number.

40309704 is an abundant number, since it is smaller than the sum of its proper divisors (71662296).

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

40309704 is a wasteful number, since it uses less digits than its factorization.

40309704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186634 (or 186624 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 40309704 is about 6348.9923609971. The cubic root of 40309704 is about 342.8755650816.

The spelling of 40309704 in words is "forty million, three hundred nine thousand, seven hundred four".