74520074 has 4 divisors (see below), whose sum is σ = 111780114. Its totient is φ = 37260036.

The previous prime is 74520073. The next prime is 74520091. The reversal of 74520074 is 47002547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47002547 = 23 ⋅2043589.

It can be written as a sum of positive squares in only one way, i.e., 41538025 + 32982049 = 6445^2 + 5743^2 .

It is not an unprimeable number, because it can be changed into a prime (74520073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18630017 + ... + 18630020.

Almost surely, 2^74520074 is an apocalyptic number.

74520074 is a deficient number, since it is larger than the sum of its proper divisors (37260040).

74520074 is a wasteful number, since it uses less digits than its factorization.

74520074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37260039.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 74520074 is about 8632.5010280915. The cubic root of 74520074 is about 420.8148843027.

The spelling of 74520074 in words is "seventy-four million, five hundred twenty thousand, seventy-four".