74486381 has 8 divisors (see below), whose sum is σ = 76422528. Its totient is φ = 72556000.

The previous prime is 74486341. The next prime is 74486383. The reversal of 74486381 is 18368447.

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 74486381 - 2⁶ = 74486317 is a prime.

It is a super-2 number, since 2×74486381² = 11096441908954322, which contains 22 as substring.

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 (74486383) 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, 38876 + ... + 40746.

It is an arithmetic number, because the mean of its divisors is an integer number (9552816).

Almost surely, 2^74486381 is an apocalyptic number.

It is an amenable number.

74486381 is a deficient number, since it is larger than the sum of its proper divisors (1936147).

74486381 is a wasteful number, since it uses less digits than its factorization.

74486381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883.

The product of its digits is 129024, while the sum is 41.

The square root of 74486381 is about 8630.5492872702. The cubic root of 74486381 is about 420.7514532810.

The spelling of 74486381 in words is "seventy-four million, four hundred eighty-six thousand, three hundred eighty-one".