74605381 has 8 divisors (see below), whose sum is σ = 78764000. Its totient is φ = 70470000.

The previous prime is 74605369. The next prime is 74605409. The reversal of 74605381 is 18350647.

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 74605381 - 2⁷ = 74605253 is a prime.

It is a super-2 number, since 2×74605381² = 11131925748310322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74605351) 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, 1006 + ... + 12256.

It is an arithmetic number, because the mean of its divisors is an integer number (9845500).

Almost surely, 2^74605381 is an apocalyptic number.

It is an amenable number.

74605381 is a deficient number, since it is larger than the sum of its proper divisors (4158619).

74605381 is a wasteful number, since it uses less digits than its factorization.

74605381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11619.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 74605381 is about 8637.4406510262. The cubic root of 74605381 is about 420.9753992881.

The spelling of 74605381 in words is "seventy-four million, six hundred five thousand, three hundred eighty-one".