74752840 has 64 divisors (see below), whose sum is σ = 181440000. Its totient is φ = 27624960.

The previous prime is 74752837. The next prime is 74752879. The reversal of 74752840 is 4825747.

It is a self number, because there is not a number n which added to its sum of digits gives 74752840.

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 15 ways as a sum of consecutive naturals, for example, 29961 + ... + 32359.

It is an arithmetic number, because the mean of its divisors is an integer number (2835000).

Almost surely, 2^74752840 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 74752840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90720000).

74752840 is an abundant number, since it is smaller than the sum of its proper divisors (106687160).

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

74752840 is a wasteful number, since it uses less digits than its factorization.

74752840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470 (or 2466 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 74752840 is about 8645.9724727760. The cubic root of 74752840 is about 421.2525721357.

The spelling of 74752840 in words is "seventy-four million, seven hundred fifty-two thousand, eight hundred forty".