74642384 has 10 divisors (see below), whose sum is σ = 144619650. Its totient is φ = 37321184.

The previous prime is 74642341. The next prime is 74642387. The reversal of 74642384 is 48324647.

It can be written as a sum of positive squares in only one way, i.e., 45265984 + 29376400 = 6728^2 + 5420^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74642387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2332559 + ... + 2332590.

It is an arithmetic number, because the mean of its divisors is an integer number (14461965).

Almost surely, 2^74642384 is an apocalyptic number.

It is an amenable number.

74642384 is a deficient number, since it is larger than the sum of its proper divisors (69977266).

74642384 is a wasteful number, since it uses less digits than its factorization.

74642384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4665157 (or 4665151 counting only the distinct ones).

The product of its digits is 129024, while the sum is 38.

The square root of 74642384 is about 8639.5823973153. The cubic root of 74642384 is about 421.0449866638.

The spelling of 74642384 in words is "seventy-four million, six hundred forty-two thousand, three hundred eighty-four".