39490556 has 12 divisors (see below), whose sum is σ = 78981168. Its totient is φ = 16924512.

The previous prime is 39490519. The next prime is 39490567. The reversal of 39490556 is 65509493.

39490556 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705161 + ... + 705216.

It is an arithmetic number, because the mean of its divisors is an integer number (6581764).

Almost surely, 2^39490556 is an apocalyptic number.

It is an amenable number.

39490556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

39490556 is a wasteful number, since it uses less digits than its factorization.

39490556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410388 (or 1410386 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 39490556 is about 6284.1511757755. The cubic root of 39490556 is about 340.5370865452.

The spelling of 39490556 in words is "thirty-nine million, four hundred ninety thousand, five hundred fifty-six".