74770144 has 24 divisors (see below), whose sum is σ = 147412440. Its totient is φ = 37332096.

The previous prime is 74770141. The next prime is 74770147. The reversal of 74770144 is 44107747.

It is an interprime number because it is at equal distance from previous prime (74770141) and next prime (74770147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74770141) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 31462 + ... + 33754.

It is an arithmetic number, because the mean of its divisors is an integer number (6142185).

Almost surely, 2^74770144 is an apocalyptic number.

It is an amenable number.

74770144 is a deficient number, since it is larger than the sum of its proper divisors (72642296).

74770144 is a wasteful number, since it uses less digits than its factorization.

74770144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322 (or 3314 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 74770144 is about 8646.9731120202. The cubic root of 74770144 is about 421.2850738758.

The spelling of 74770144 in words is "seventy-four million, seven hundred seventy thousand, one hundred forty-four".