39149568 has 140 divisors (see below), whose sum is σ = 118940580. Its totient is φ = 12828672.

The previous prime is 39149533. The next prime is 39149569. The reversal of 39149568 is 86594193.

It is a happy number.

Its product of digits (233280) is a multiple of the sum of its prime divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39149569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 663523 + ... + 663581.

Almost surely, 2^39149568 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 39149568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59470290).

39149568 is an abundant number, since it is smaller than the sum of its proper divisors (79791012).

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

39149568 is an frugal number, since it uses more digits than its factorization.

39149568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 64 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 39149568 is about 6256.9615629313. The cubic root of 39149568 is about 339.5541098450.

The spelling of 39149568 in words is "thirty-nine million, one hundred forty-nine thousand, five hundred sixty-eight".