39530890 has 32 divisors (see below), whose sum is σ = 83948544. Its totient is φ = 13115520.

The previous prime is 39530861. The next prime is 39530891. The reversal of 39530890 is 9803593.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (39530891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6939 + ... + 11278.

It is an arithmetic number, because the mean of its divisors is an integer number (2623392).

Almost surely, 2^39530890 is an apocalyptic number.

39530890 is an abundant number, since it is smaller than the sum of its proper divisors (44417654).

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

39530890 is a wasteful number, since it uses less digits than its factorization.

39530890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18262.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 39530890 is about 6287.3595411747. The cubic root of 39530890 is about 340.6529838693.

The spelling of 39530890 in words is "thirty-nine million, five hundred thirty thousand, eight hundred ninety".