74055389 has 8 divisors (see below), whose sum is σ = 77913528. Its totient is φ = 70295040.

The previous prime is 74055353. The next prime is 74055391. The reversal of 74055389 is 98355047.

It can be written as a sum of positive squares in 4 ways, for example, as 5712100 + 68343289 = 2390^2 + 8267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74055389 - 2⁸ = 74055133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74058389) 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, 22892 + ... + 25925.

It is an arithmetic number, because the mean of its divisors is an integer number (9739191).

Almost surely, 2^74055389 is an apocalyptic number.

It is an amenable number.

74055389 is a deficient number, since it is larger than the sum of its proper divisors (3858139).

74055389 is a wasteful number, since it uses less digits than its factorization.

74055389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48895.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 74055389 is about 8605.5440850652. The cubic root of 74055389 is about 419.9383677515.

The spelling of 74055389 in words is "seventy-four million, fifty-five thousand, three hundred eighty-nine".