74442379 has 4 divisors (see below), whose sum is σ = 81209880. Its totient is φ = 67674880.

The previous prime is 74442373. The next prime is 74442397. The reversal of 74442379 is 97324447.

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

It is a cyclic number.

It is not a de Polignac number, because 74442379 - 2¹⁵ = 74409611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74442373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3383734 + ... + 3383755.

It is an arithmetic number, because the mean of its divisors is an integer number (20302470).

Almost surely, 2^74442379 is an apocalyptic number.

74442379 is a deficient number, since it is larger than the sum of its proper divisors (6767501).

74442379 is a wasteful number, since it uses less digits than its factorization.

74442379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6767500.

The product of its digits is 169344, while the sum is 40.

The square root of 74442379 is about 8627.9997102457. Note that the first 3 decimals coincide. The cubic root of 74442379 is about 420.6685855495.

The spelling of 74442379 in words is "seventy-four million, four hundred forty-two thousand, three hundred seventy-nine".