39690030 has 16 divisors (see below), whose sum is σ = 95256144. Its totient is φ = 10584000.

The previous prime is 39689983. The next prime is 39690037. The reversal of 39690030 is 3009693.

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: 1323001 = 39690030 / (3 + 9 + 6 + 9 + 0 + 0 + 3 + 0).

It is a self number, because there is not a number n which added to its sum of digits gives 39690030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39690037) 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, 661471 + ... + 661530.

It is an arithmetic number, because the mean of its divisors is an integer number (5953509).

Almost surely, 2^39690030 is an apocalyptic number.

39690030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39690030 is an abundant number, since it is smaller than the sum of its proper divisors (55566114).

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

39690030 is a wasteful number, since it uses less digits than its factorization.

39690030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323011.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 39690030 is about 6300.0023809519. The cubic root of 39690030 is about 341.1094954856.

Subtracting from 39690030 its sum of digits (30), we obtain a square (39690000 = 6300²).

The spelling of 39690030 in words is "thirty-nine million, six hundred ninety thousand, thirty".