74383381 has 4 divisors (see below), whose sum is σ = 78758892. Its totient is φ = 70007872.

The previous prime is 74383367. The next prime is 74383391. The reversal of 74383381 is 18338347.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43758225 + 30625156 = 6615^2 + 5534^2 .

It is a cyclic number.

It is not a de Polignac number, because 74383381 - 2¹⁷ = 74252309 is a prime.

It is a super-2 number, since 2×74383381² = 11065774737982322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74383381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74383301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2187730 + ... + 2187763.

It is an arithmetic number, because the mean of its divisors is an integer number (19689723).

Almost surely, 2^74383381 is an apocalyptic number.

It is an amenable number.

74383381 is a deficient number, since it is larger than the sum of its proper divisors (4375511).

74383381 is a wasteful number, since it uses less digits than its factorization.

74383381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4375510.

The product of its digits is 48384, while the sum is 37.

The square root of 74383381 is about 8624.5800477473. The cubic root of 74383381 is about 420.5574250118.

The spelling of 74383381 in words is "seventy-four million, three hundred eighty-three thousand, three hundred eighty-one".