39750990 has 32 divisors (see below), whose sum is σ = 98482176. Its totient is φ = 10258080.

The previous prime is 39750989. The next prime is 39751001. The reversal of 39750990 is 9905793.

It is a happy number.

It is a congruent number.

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, 20442 + ... + 22301.

It is an arithmetic number, because the mean of its divisors is an integer number (3077568).

Almost surely, 2^39750990 is an apocalyptic number.

39750990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39750990 is an abundant number, since it is smaller than the sum of its proper divisors (58731186).

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

39750990 is a wasteful number, since it uses less digits than its factorization.

39750990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42784.

The product of its (nonzero) digits is 76545, while the sum is 42.

The square root of 39750990 is about 6304.8386180774. The cubic root of 39750990 is about 341.2840430823.

The spelling of 39750990 in words is "thirty-nine million, seven hundred fifty thousand, nine hundred ninety".