74209872 has 40 divisors (see below), whose sum is σ = 209138400. Its totient is φ = 22487680.

The previous prime is 74209871. The next prime is 74209903. The reversal of 74209872 is 27890247.

It is a self number, because there is not a number n which added to its sum of digits gives 74209872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74209871) by changing a digit.

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, 69747 + ... + 70802.

It is an arithmetic number, because the mean of its divisors is an integer number (5228460).

Almost surely, 2^74209872 is an apocalyptic number.

It is an amenable number.

74209872 is an abundant number, since it is smaller than the sum of its proper divisors (134928528).

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

74209872 is a wasteful number, since it uses less digits than its factorization.

74209872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140571 (or 140565 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 74209872 is about 8614.5151923948. The cubic root of 74209872 is about 420.2301686244.

The spelling of 74209872 in words is "seventy-four million, two hundred nine thousand, eight hundred seventy-two".