74637434 has 8 divisors (see below), whose sum is σ = 117848640. Its totient is φ = 35354556.

The previous prime is 74637427. The next prime is 74637449. The reversal of 74637434 is 43473647.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 1964143 = 74637434 / (7 + 4 + 6 + 3 + 7 + 4 + 3 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 982034 + ... + 982109.

It is an arithmetic number, because the mean of its divisors is an integer number (14731080).

Almost surely, 2^74637434 is an apocalyptic number.

74637434 is a deficient number, since it is larger than the sum of its proper divisors (43211206).

74637434 is a wasteful number, since it uses less digits than its factorization.

74637434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964164.

The product of its digits is 169344, while the sum is 38.

The square root of 74637434 is about 8639.2959203861. The cubic root of 74637434 is about 421.0356790888.

The spelling of 74637434 in words is "seventy-four million, six hundred thirty-seven thousand, four hundred thirty-four".