74149430 has 32 divisors (see below), whose sum is σ = 137095200. Its totient is φ = 28864512.

The previous prime is 74149429. The next prime is 74149451. The reversal of 74149430 is 3494147.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63734 + ... + 64886.

It is an arithmetic number, because the mean of its divisors is an integer number (4284225).

Almost surely, 2^74149430 is an apocalyptic number.

74149430 is a deficient number, since it is larger than the sum of its proper divisors (62945770).

74149430 is a wasteful number, since it uses less digits than its factorization.

74149430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 74149430 is about 8611.0063291116. The cubic root of 74149430 is about 420.1160488088.

The spelling of 74149430 in words is "seventy-four million, one hundred forty-nine thousand, four hundred thirty".