74427434 has 4 divisors (see below), whose sum is σ = 111641154. Its totient is φ = 37213716.

The previous prime is 74427433. The next prime is 74427473. The reversal of 74427434 is 43472447.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 73530625 + 896809 = 8575^2 + 947^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74427394 and 74427403.

It is not an unprimeable number, because it can be changed into a prime (74427433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18606857 + ... + 18606860.

Almost surely, 2^74427434 is an apocalyptic number.

74427434 is a deficient number, since it is larger than the sum of its proper divisors (37213720).

74427434 is a wasteful number, since it uses less digits than its factorization.

74427434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37213719.

The product of its digits is 75264, while the sum is 35.

The square root of 74427434 is about 8627.1335911762. The cubic root of 74427434 is about 420.6404326216.

The spelling of 74427434 in words is "seventy-four million, four hundred twenty-seven thousand, four hundred thirty-four".