74425642 has 8 divisors (see below), whose sum is σ = 112626756. Its totient is φ = 36883392.

The previous prime is 74425639. The next prime is 74425667. The reversal of 74425642 is 24652447.

It can be written as a sum of positive squares in 2 ways, for example, as 51279921 + 23145721 = 7161^2 + 4811^2 .

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

It is a super-2 number, since 2×74425642² = 11078352374224328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74425598 and 74425607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164433 + ... + 164884.

Almost surely, 2^74425642 is an apocalyptic number.

74425642 is a deficient number, since it is larger than the sum of its proper divisors (38201114).

74425642 is a wasteful number, since it uses less digits than its factorization.

74425642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329432.

The product of its digits is 53760, while the sum is 34.

The square root of 74425642 is about 8627.0297321848. The cubic root of 74425642 is about 420.6370566545.

The spelling of 74425642 in words is "seventy-four million, four hundred twenty-five thousand, six hundred forty-two".