74857122 has 24 divisors (see below), whose sum is σ = 168198576. Its totient is φ = 24952212.

The previous prime is 74857121. The next prime is 74857141. The reversal of 74857122 is 22175847.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (74857121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76528 + ... + 77499.

It is an arithmetic number, because the mean of its divisors is an integer number (7008274).

Almost surely, 2^74857122 is an apocalyptic number.

74857122 is an abundant number, since it is smaller than the sum of its proper divisors (93341454).

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

74857122 is a wasteful number, since it uses less digits than its factorization.

74857122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154044 (or 154032 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 74857122 is about 8652.0010402219. The cubic root of 74857122 is about 421.4483669228.

The spelling of 74857122 in words is "seventy-four million, eight hundred fifty-seven thousand, one hundred twenty-two".