39012690 has 16 divisors (see below), whose sum is σ = 93630528. Its totient is φ = 10403376.

The previous prime is 39012683. The next prime is 39012691. The reversal of 39012690 is 9621093.

It is a super-2 number, since 2×39012690² = 3043979962072200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1300423 = 39012690 / (3 + 9 + 0 + 1 + 2 + 6 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (39012691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650182 + ... + 650241.

It is an arithmetic number, because the mean of its divisors is an integer number (5851908).

Almost surely, 2^39012690 is an apocalyptic number.

39012690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39012690 is an abundant number, since it is smaller than the sum of its proper divisors (54617838).

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

39012690 is a wasteful number, since it uses less digits than its factorization.

39012690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300433.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 39012690 is about 6246.0139288990. The cubic root of 39012690 is about 339.1579219138.

The spelling of 39012690 in words is "thirty-nine million, twelve thousand, six hundred ninety".