78074142 has 16 divisors (see below), whose sum is σ = 156304512. Its totient is φ = 25998680.

The previous prime is 78074131. The next prime is 78074179. The reversal of 78074142 is 24147087.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 583 + ... + 12509.

It is an arithmetic number, because the mean of its divisors is an integer number (9769032).

Almost surely, 2^78074142 is an apocalyptic number.

78074142 is an abundant number, since it is smaller than the sum of its proper divisors (78230370).

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

78074142 is a wasteful number, since it uses less digits than its factorization.

78074142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13023.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 78074142 is about 8835.9573335321. The cubic root of 78074142 is about 427.4012028456.

The spelling of 78074142 in words is "seventy-eight million, seventy-four thousand, one hundred forty-two".