74861290 has 32 divisors (see below), whose sum is σ = 154316160. Its totient is φ = 25614144.

The previous prime is 74861279. The next prime is 74861299. The reversal of 74861290 is 9216847.

It is not an unprimeable number, because it can be changed into a prime (74861299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50581 + ... + 52039.

It is an arithmetic number, because the mean of its divisors is an integer number (4822380).

Almost surely, 2^74861290 is an apocalyptic number.

74861290 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74861290 is an abundant number, since it is smaller than the sum of its proper divisors (79454870).

74861290 is a wasteful number, since it uses less digits than its factorization.

74861290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 74861290 is about 8652.2419060033. The cubic root of 74861290 is about 421.4561887757.

The spelling of 74861290 in words is "seventy-four million, eight hundred sixty-one thousand, two hundred ninety".