74320115 has 16 divisors (see below), whose sum is σ = 94137120. Its totient is φ = 56171520.

The previous prime is 74320111. The next prime is 74320121. The reversal of 74320115 is 51102347.

It is not a de Polignac number, because 74320115 - 2² = 74320111 is a prime.

It is a super-2 number, since 2×74320115² = 11046958987226450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74320111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42947 + ... + 44643.

It is an arithmetic number, because the mean of its divisors is an integer number (5883570).

Almost surely, 2^74320115 is an apocalyptic number.

74320115 is a deficient number, since it is larger than the sum of its proper divisors (19817005).

74320115 is a wasteful number, since it uses less digits than its factorization.

74320115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 74320115 is about 8620.9114947319. The cubic root of 74320115 is about 420.4381576312.

The spelling of 74320115 in words is "seventy-four million, three hundred twenty thousand, one hundred fifteen".