74385157 has 8 divisors (see below), whose sum is σ = 92740032. Its totient is φ = 57962400.

The previous prime is 74385139. The next prime is 74385163. The reversal of 74385157 is 75158347.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74385157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74385137) 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, 482944 + ... + 483097.

It is an arithmetic number, because the mean of its divisors is an integer number (11592504).

Almost surely, 2^74385157 is an apocalyptic number.

74385157 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

74385157 is a deficient number, since it is larger than the sum of its proper divisors (18354875).

74385157 is a wasteful number, since it uses less digits than its factorization.

74385157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966059.

The product of its digits is 117600, while the sum is 40.

The square root of 74385157 is about 8624.6830086676. The cubic root of 74385157 is about 420.5607721038.

The spelling of 74385157 in words is "seventy-four million, three hundred eighty-five thousand, one hundred fifty-seven".