74408906 has 16 divisors (see below), whose sum is σ = 131126688. Its totient is φ = 31220400.

The previous prime is 74408879. The next prime is 74408909. The reversal of 74408906 is 60980447.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 74408906.

It is not an unprimeable number, because it can be changed into a prime (74408909) 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, 129800 + ... + 130371.

It is an arithmetic number, because the mean of its divisors is an integer number (8195418).

Almost surely, 2^74408906 is an apocalyptic number.

74408906 is a deficient number, since it is larger than the sum of its proper divisors (56717782).

74408906 is a wasteful number, since it uses less digits than its factorization.

74408906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260197.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 74408906 is about 8626.0597030162. The cubic root of 74408906 is about 420.6055249166.

The spelling of 74408906 in words is "seventy-four million, four hundred eight thousand, nine hundred six".