74994644 has 6 divisors (see below), whose sum is σ = 131240634. Its totient is φ = 37497320.

The previous prime is 74994631. The next prime is 74994659. The reversal of 74994644 is 44649947.

It can be written as a sum of positive squares in only one way, i.e., 74166544 + 828100 = 8612^2 + 910^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9374327 + ... + 9374334.

It is an arithmetic number, because the mean of its divisors is an integer number (21873439).

Almost surely, 2^74994644 is an apocalyptic number.

It is an amenable number.

74994644 is a deficient number, since it is larger than the sum of its proper divisors (56245990).

74994644 is a wasteful number, since it uses less digits than its factorization.

74994644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18748665 (or 18748663 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The square root of 74994644 is about 8659.9448035192. The cubic root of 74994644 is about 421.7062936889.

The spelling of 74994644 in words is "seventy-four million, nine hundred ninety-four thousand, six hundred forty-four".