74242878 has 24 divisors (see below), whose sum is σ = 150094104. Its totient is φ = 24482400.

The previous prime is 74242867. The next prime is 74242879. The reversal of 74242878 is 87824247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74242879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60600 + ... + 61812.

It is an arithmetic number, because the mean of its divisors is an integer number (6253921).

Almost surely, 2^74242878 is an apocalyptic number.

74242878 is an abundant number, since it is smaller than the sum of its proper divisors (75851226).

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

74242878 is a wasteful number, since it uses less digits than its factorization.

74242878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1319 counting only the distinct ones).

The product of its digits is 200704, while the sum is 42.

The square root of 74242878 is about 8616.4306995414. The cubic root of 74242878 is about 420.2924607012.

The spelling of 74242878 in words is "seventy-four million, two hundred forty-two thousand, eight hundred seventy-eight".