74380830 has 16 divisors (see below), whose sum is σ = 178514064. Its totient is φ = 19834880.

The previous prime is 74380829. The next prime is 74380843. The reversal of 74380830 is 3808347.

It is a junction number, because it is equal to n+sod(n) for n = 74380791 and 74380800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1239651 + ... + 1239710.

It is an arithmetic number, because the mean of its divisors is an integer number (11157129).

Almost surely, 2^74380830 is an apocalyptic number.

74380830 is an abundant number, since it is smaller than the sum of its proper divisors (104133234).

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

74380830 is a wasteful number, since it uses less digits than its factorization.

74380830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479371.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 74380830 is about 8624.4321552204. The cubic root of 74380830 is about 420.5526172432.

The spelling of 74380830 in words is "seventy-four million, three hundred eighty thousand, eight hundred thirty".