74909434 has 8 divisors (see below), whose sum is σ = 112416948. Its totient is φ = 37437120.

The previous prime is 74909411. The next prime is 74909449. The reversal of 74909434 is 43490947.

It can be written as a sum of positive squares in 2 ways, for example, as 73153809 + 1755625 = 8553^2 + 1325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×74909434² = 11222846604400712, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2607 + ... + 12514.

Almost surely, 2^74909434 is an apocalyptic number.

74909434 is a deficient number, since it is larger than the sum of its proper divisors (37507514).

74909434 is a wasteful number, since it uses less digits than its factorization.

74909434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17600.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 74909434 is about 8655.0236279285. The cubic root of 74909434 is about 421.5465168951.

It can be divided in two parts, 7490943 and 4, that added together give a palindrome (7490947).

The spelling of 74909434 in words is "seventy-four million, nine hundred nine thousand, four hundred thirty-four".