74423390 has 8 divisors (see below), whose sum is σ = 133962120. Its totient is φ = 29769352.

The previous prime is 74423387. The next prime is 74423429. The reversal of 74423390 is 9332447.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3721160 + ... + 3721179.

It is an arithmetic number, because the mean of its divisors is an integer number (16745265).

Almost surely, 2^74423390 is an apocalyptic number.

74423390 is a deficient number, since it is larger than the sum of its proper divisors (59538730).

74423390 is a wasteful number, since it uses less digits than its factorization.

74423390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7442346.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 74423390 is about 8626.8992111882. The cubic root of 74423390 is about 420.6328140119.

The spelling of 74423390 in words is "seventy-four million, four hundred twenty-three thousand, three hundred ninety".