74644106 has 8 divisors (see below), whose sum is σ = 113500164. Its totient is φ = 36810720.

The previous prime is 74644099. The next prime is 74644109. The reversal of 74644106 is 60144647.

It can be written as a sum of positive squares in 2 ways, for example, as 62331025 + 12313081 = 7895^2 + 3509^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74644109) 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, 255485 + ... + 255776.

Almost surely, 2^74644106 is an apocalyptic number.

74644106 is a deficient number, since it is larger than the sum of its proper divisors (38856058).

74644106 is a wasteful number, since it uses less digits than its factorization.

74644106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511336.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 74644106 is about 8639.6820543351. The cubic root of 74644106 is about 421.0482244753.

The spelling of 74644106 in words is "seventy-four million, six hundred forty-four thousand, one hundred six".