74489842 has 16 divisors (see below), whose sum is σ = 134418240. Its totient is φ = 30243888.

The previous prime is 74489839. The next prime is 74489873. The reversal of 74489842 is 24898447.

It is a happy number.

It is a super-2 number, since 2×74489842² = 11097473122369928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74489792 and 74489801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139753 + ... + 140284.

It is an arithmetic number, because the mean of its divisors is an integer number (8401140).

Almost surely, 2^74489842 is an apocalyptic number.

74489842 is a deficient number, since it is larger than the sum of its proper divisors (59928398).

74489842 is a wasteful number, since it uses less digits than its factorization.

74489842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280065.

The product of its digits is 516096, while the sum is 46.

The square root of 74489842 is about 8630.7497936158. The cubic root of 74489842 is about 420.7579699006.

The spelling of 74489842 in words is "seventy-four million, four hundred eighty-nine thousand, eight hundred forty-two".