74055390 has 32 divisors (see below), whose sum is σ = 179988480. Its totient is φ = 19497504.

The previous prime is 74055353. The next prime is 74055391. The reversal of 74055390 is 9355047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74055391) 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, 13254 + ... + 17993.

It is an arithmetic number, because the mean of its divisors is an integer number (5624640).

Almost surely, 2^74055390 is an apocalyptic number.

74055390 is an abundant number, since it is smaller than the sum of its proper divisors (105933090).

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

74055390 is a wasteful number, since it uses less digits than its factorization.

74055390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31336.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 74055390 is about 8605.5441431672. The cubic root of 74055390 is about 419.9383696417.

The spelling of 74055390 in words is "seventy-four million, fifty-five thousand, three hundred ninety".