74282739 has 8 divisors (see below), whose sum is σ = 99083712. Its totient is φ = 49501800.

The previous prime is 74282731. The next prime is 74282743. The reversal of 74282739 is 93728247.

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

It is not a de Polignac number, because 74282739 - 2³ = 74282731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74282739.

It is not an unprimeable number, because it can be changed into a prime (74282731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10572 + ... + 16134.

It is an arithmetic number, because the mean of its divisors is an integer number (12385464).

Almost surely, 2^74282739 is an apocalyptic number.

74282739 is a deficient number, since it is larger than the sum of its proper divisors (24800973).

74282739 is a wasteful number, since it uses less digits than its factorization.

74282739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10017.

The product of its digits is 169344, while the sum is 42.

The square root of 74282739 is about 8618.7434699033. The cubic root of 74282739 is about 420.3676655821.

The spelling of 74282739 in words is "seventy-four million, two hundred eighty-two thousand, seven hundred thirty-nine".