39243960 has 256 divisors, whose sum is σ = 155520000. Its totient is φ = 8612352.

The previous prime is 39243937. The next prime is 39243979. The reversal of 39243960 is 6934293.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 219151 + ... + 219329.

It is an arithmetic number, because the mean of its divisors is an integer number (607500).

Almost surely, 2^39243960 is an apocalyptic number.

39243960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a pronic number, being equal to 6264×6265.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39243960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77760000).

39243960 is an abundant number, since it is smaller than the sum of its proper divisors (116276040).

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

39243960 is a wasteful number, since it uses less digits than its factorization.

39243960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 39243960 is about 6264.4999800463. The cubic root of 39243960 is about 339.8267860498.

The spelling of 39243960 in words is "thirty-nine million, two hundred forty-three thousand, nine hundred sixty".