39149968 has 80 divisors (see below), whose sum is σ = 90744192. Its totient is φ = 16128000.

The previous prime is 39149953. The next prime is 39149989. The reversal of 39149968 is 86994193.

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, 162328 + ... + 162568.

Almost surely, 2^39149968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39149968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45372096).

39149968 is an abundant number, since it is smaller than the sum of its proper divisors (51594224).

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

39149968 is a wasteful number, since it uses less digits than its factorization.

39149968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 338 counting only the distinct ones).

The product of its digits is 419904, while the sum is 49.

The square root of 39149968 is about 6256.9935272461. The cubic root of 39149968 is about 339.5552662748. Note that the first 3 decimals are identical.

The spelling of 39149968 in words is "thirty-nine million, one hundred forty-nine thousand, nine hundred sixty-eight".