39251968 has 78 divisors (see below), whose sum is σ = 92197896. Its totient is φ = 16367616.

The previous prime is 39251957. The next prime is 39251969. The reversal of 39251968 is 86915293.

It is a happy number.

It is a super-3 number, since 3×39251968³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39251969) 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, 1060846 + ... + 1060882.

Almost surely, 2^39251968 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 39251968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46098948).

39251968 is an abundant number, since it is smaller than the sum of its proper divisors (52945928).

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

39251968 is an frugal number, since it uses more digits than its factorization.

39251968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 46 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 39251968 is about 6265.1391046010. The cubic root of 39251968 is about 339.8498991422.

The spelling of 39251968 in words is "thirty-nine million, two hundred fifty-one thousand, nine hundred sixty-eight".