39481900 has 18 divisors (see below), whose sum is σ = 85675940. Its totient is φ = 15792720.

The previous prime is 39481891. The next prime is 39481903. The reversal of 39481900 is 918493.

It is a super-2 number, since 2×39481900² = 3117640855220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39481903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197310 + ... + 197509.

Almost surely, 2^39481900 is an apocalyptic number.

It is an amenable number.

39481900 is an abundant number, since it is smaller than the sum of its proper divisors (46194040).

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

39481900 is a wasteful number, since it uses less digits than its factorization.

39481900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394833 (or 394826 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 39481900 is about 6283.4624213088. The cubic root of 39481900 is about 340.5122037655.

The spelling of 39481900 in words is "thirty-nine million, four hundred eighty-one thousand, nine hundred".