39748920 has 32 divisors (see below), whose sum is σ = 119247120. Its totient is φ = 10599680.

The previous prime is 39748909. The next prime is 39748939. The reversal of 39748920 is 2984793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165501 + ... + 165740.

Almost surely, 2^39748920 is an apocalyptic number.

39748920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39748920 is an abundant number, since it is smaller than the sum of its proper divisors (79498200).

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

39748920 is a wasteful number, since it uses less digits than its factorization.

39748920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331255 (or 331251 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 39748920 is about 6304.6744563062. The cubic root of 39748920 is about 341.2781189512.

The spelling of 39748920 in words is "thirty-nine million, seven hundred forty-eight thousand, nine hundred twenty".