74642349 has 8 divisors (see below), whose sum is σ = 100489792. Its totient is φ = 49278240.

The previous prime is 74642341. The next prime is 74642387. The reversal of 74642349 is 94324647.

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

It is not a de Polignac number, because 74642349 - 2³ = 74642341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74642341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120472 + ... + 121089.

It is an arithmetic number, because the mean of its divisors is an integer number (12561224).

Almost surely, 2^74642349 is an apocalyptic number.

It is an amenable number.

74642349 is a deficient number, since it is larger than the sum of its proper divisors (25847443).

74642349 is a wasteful number, since it uses less digits than its factorization.

74642349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241667.

The product of its digits is 145152, while the sum is 39.

The square root of 74642349 is about 8639.5803717542. The cubic root of 74642349 is about 421.0449208541.

The spelling of 74642349 in words is "seventy-four million, six hundred forty-two thousand, three hundred forty-nine".