39097920 has 112 divisors (see below), whose sum is σ = 125455680. Its totient is φ = 10315776.

The previous prime is 39097837. The next prime is 39097939. The reversal of 39097920 is 2979093.

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, 133294 + ... + 133586.

It is an arithmetic number, because the mean of its divisors is an integer number (1120140).

Almost surely, 2^39097920 is an apocalyptic number.

39097920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39097920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62727840).

39097920 is an abundant number, since it is smaller than the sum of its proper divisors (86357760).

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

39097920 is a wasteful number, since it uses less digits than its factorization.

39097920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 39097920 is about 6252.8329579479. The cubic root of 39097920 is about 339.4047254096.

The spelling of 39097920 in words is "thirty-nine million, ninety-seven thousand, nine hundred twenty".