39486864 has 80 divisors (see below), whose sum is σ = 111153600. Its totient is φ = 12031488.

The previous prime is 39486851. The next prime is 39486911. The reversal of 39486864 is 46868493.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 25702 + ... + 27194.

It is an arithmetic number, because the mean of its divisors is an integer number (1389420).

Almost surely, 2^39486864 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 39486864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55576800).

39486864 is an abundant number, since it is smaller than the sum of its proper divisors (71666736).

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

39486864 is a wasteful number, since it uses less digits than its factorization.

39486864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552 (or 1546 counting only the distinct ones).

The product of its digits is 995328, while the sum is 48.

The square root of 39486864 is about 6283.8574140412. The cubic root of 39486864 is about 340.5264738635.

It can be divided in two parts, 3948 and 6864, that multiplied together give a palindrome (27099072).

The spelling of 39486864 in words is "thirty-nine million, four hundred eighty-six thousand, eight hundred sixty-four".