39000090 has 32 divisors (see below), whose sum is σ = 94089600. Its totient is φ = 10345664.

The previous prime is 39000079. The next prime is 39000107. The reversal of 39000090 is 9000093.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2611 + ... + 9209.

It is an arithmetic number, because the mean of its divisors is an integer number (2940300).

Almost surely, 2^39000090 is an apocalyptic number.

39000090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39000090 is an abundant number, since it is smaller than the sum of its proper divisors (55089510).

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

39000090 is a wasteful number, since it uses less digits than its factorization.

39000090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6806.

The product of its (nonzero) digits is 243, while the sum is 21.

The square root of 39000090 is about 6245.0052041612. The cubic root of 39000090 is about 339.1214051636.

The spelling of 39000090 in words is "thirty-nine million, ninety", and thus it is an aban number and an uban number.