74322388 has 12 divisors (see below), whose sum is σ = 148644832. Its totient is φ = 31852440.

The previous prime is 74322383. The next prime is 74322397. The reversal of 74322388 is 88322347.

It is a happy number.

74322388 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74322383) 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, 1327158 + ... + 1327213.

Almost surely, 2^74322388 is an apocalyptic number.

It is an amenable number.

74322388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74322388 is a wasteful number, since it uses less digits than its factorization.

74322388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654382 (or 2654380 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 74322388 is about 8621.0433243315. The cubic root of 74322388 is about 420.4424438023.

The spelling of 74322388 in words is "seventy-four million, three hundred twenty-two thousand, three hundred eighty-eight".