74305878 has 16 divisors (see below), whose sum is σ = 157353840. Its totient is φ = 23311616.

The previous prime is 74305873. The next prime is 74305883. The reversal of 74305878 is 87850347.

It is an interprime number because it is at equal distance from previous prime (74305873) and next prime (74305883).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74305871) 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, 364143 + ... + 364346.

It is an arithmetic number, because the mean of its divisors is an integer number (9834615).

Almost surely, 2^74305878 is an apocalyptic number.

74305878 is an abundant number, since it is smaller than the sum of its proper divisors (83047962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74305878 is a wasteful number, since it uses less digits than its factorization.

74305878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728511.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 74305878 is about 8620.0857304322. The cubic root of 74305878 is about 420.4113090886.

The spelling of 74305878 in words is "seventy-four million, three hundred five thousand, eight hundred seventy-eight".