74734402 has 4 divisors (see below), whose sum is σ = 112101606. Its totient is φ = 37367200.

The previous prime is 74734393. The next prime is 74734403. The reversal of 74734402 is 20443747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20443747 = 877 ⋅23311.

It can be written as a sum of positive squares in only one way, i.e., 65788321 + 8946081 = 8111^2 + 2991^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (74734403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18683599 + ... + 18683602.

Almost surely, 2^74734402 is an apocalyptic number.

74734402 is a deficient number, since it is larger than the sum of its proper divisors (37367204).

74734402 is a wasteful number, since it uses less digits than its factorization.

74734402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37367203.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 74734402 is about 8644.9061302018. The cubic root of 74734402 is about 421.2179349072.

The spelling of 74734402 in words is "seventy-four million, seven hundred thirty-four thousand, four hundred two".