74012544 has 96 divisors (see below), whose sum is σ = 218312640. Its totient is φ = 24053760.

The previous prime is 74012537. The next prime is 74012557. The reversal of 74012544 is 44521047.

74012544 is a `hidden beast` number, since 7 + 401 + 254 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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 11 ways as a sum of consecutive naturals, for example, 46449 + ... + 48015.

It is an arithmetic number, because the mean of its divisors is an integer number (2274090).

Almost surely, 2^74012544 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 74012544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109156320).

74012544 is an abundant number, since it is smaller than the sum of its proper divisors (144300096).

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

74012544 is a wasteful number, since it uses less digits than its factorization.

74012544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628 (or 1613 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 74012544 is about 8603.0543413372. The cubic root of 74012544 is about 419.8573665326.

The spelling of 74012544 in words is "seventy-four million, twelve thousand, five hundred forty-four".