39243264 has 80 divisors (see below), whose sum is σ = 108274320. Its totient is φ = 12615680.

The previous prime is 39243263. The next prime is 39243287. The reversal of 39243264 is 46234293.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39243263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44104 + ... + 44984.

It is an arithmetic number, because the mean of its divisors is an integer number (1353429).

Almost surely, 2^39243264 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 39243264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54137160).

39243264 is an abundant number, since it is smaller than the sum of its proper divisors (69031056).

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

39243264 is an equidigital number, since it uses as much as digits as its factorization.

39243264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931 (or 915 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 39243264 is about 6264.4444286784. Note that the first 4 decimals coincide. The cubic root of 39243264 is about 339.8247770711.

The spelling of 39243264 in words is "thirty-nine million, two hundred forty-three thousand, two hundred sixty-four".