74109390 has 16 divisors (see below), whose sum is σ = 177862608. Its totient is φ = 19762496.

The previous prime is 74109361. The next prime is 74109397. The reversal of 74109390 is 9390147.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74109397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1235127 + ... + 1235186.

It is an arithmetic number, because the mean of its divisors is an integer number (11116413).

Almost surely, 2^74109390 is an apocalyptic number.

74109390 is an abundant number, since it is smaller than the sum of its proper divisors (103753218).

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

74109390 is a wasteful number, since it uses less digits than its factorization.

74109390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470323.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 74109390 is about 8608.6810836504. The cubic root of 74109390 is about 420.0404156119.

The spelling of 74109390 in words is "seventy-four million, one hundred nine thousand, three hundred ninety".