74555438 has 16 divisors (see below), whose sum is σ = 119023344. Its totient is φ = 34903680.

The previous prime is 74555431. The next prime is 74555447. The reversal of 74555438 is 83455547.

It is a junction number, because it is equal to n+sod(n) for n = 74555395 and 74555404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74555431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1133 + ... + 12263.

It is an arithmetic number, because the mean of its divisors is an integer number (7438959).

Almost surely, 2^74555438 is an apocalyptic number.

74555438 is a deficient number, since it is larger than the sum of its proper divisors (44467906).

74555438 is a wasteful number, since it uses less digits than its factorization.

74555438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11347.

The product of its digits is 336000, while the sum is 41.

The square root of 74555438 is about 8634.5490907169. The cubic root of 74555438 is about 420.8814406157.

The spelling of 74555438 in words is "seventy-four million, five hundred fifty-five thousand, four hundred thirty-eight".