39973264 has 40 divisors (see below), whose sum is σ = 85083840. Its totient is φ = 18108288.

The previous prime is 39973253. The next prime is 39973277. The reversal of 39973264 is 46237993.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 39973264.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4134 + ... + 9850.

It is an arithmetic number, because the mean of its divisors is an integer number (2127096).

Almost surely, 2^39973264 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 39973264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42541920).

39973264 is an abundant number, since it is smaller than the sum of its proper divisors (45110576).

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

39973264 is a wasteful number, since it uses less digits than its factorization.

39973264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5767 (or 5761 counting only the distinct ones).

The product of its digits is 244944, while the sum is 43.

The square root of 39973264 is about 6322.4413006370. The cubic root of 39973264 is about 341.9189758243.

The spelling of 39973264 in words is "thirty-nine million, nine hundred seventy-three thousand, two hundred sixty-four".