74381015 has 4 divisors (see below), whose sum is σ = 89257224. Its totient is φ = 59504808.

The previous prime is 74381009. The next prime is 74381023. The reversal of 74381015 is 51018347.

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

It is a cyclic number.

It is not a de Polignac number, because 74381015 - 2²⁶ = 7272151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7438097 + ... + 7438106.

It is an arithmetic number, because the mean of its divisors is an integer number (22314306).

Almost surely, 2^74381015 is an apocalyptic number.

74381015 is a deficient number, since it is larger than the sum of its proper divisors (14876209).

74381015 is a wasteful number, since it uses less digits than its factorization.

74381015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14876208.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 74381015 is about 8624.4428805576. The cubic root of 74381015 is about 420.5529659091.

The spelling of 74381015 in words is "seventy-four million, three hundred eighty-one thousand, fifteen".