74511424 has 63 divisors (see below), whose sum is σ = 162059493. Its totient is φ = 33975552.

The previous prime is 74511413. The next prime is 74511427. The reversal of 74511424 is 42411547.

The square root of 74511424 is 8632.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 11022400 + 63489024 = 3320^2 + 7968^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74511392 and 74511401.

It is not an unprimeable number, because it can be changed into a prime (74511427) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 897687 + ... + 897769.

Almost surely, 2^74511424 is an apocalyptic number.

74511424 is the 8632-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74511424

74511424 is an abundant number, since it is smaller than the sum of its proper divisors (87548069).

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

74511424 is an equidigital number, since it uses as much as digits as its factorization.

74511424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 98 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The cubic root of 74511424 is about 420.7986014883.

The spelling of 74511424 in words is "seventy-four million, five hundred eleven thousand, four hundred twenty-four".