74385142 has 16 divisors (see below), whose sum is σ = 121956912. Its totient is φ = 33818400.

The previous prime is 74385139. The next prime is 74385163. The reversal of 74385142 is 24158347.

It is a junction number, because it is equal to n+sod(n) for n = 74385098 and 74385107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19609 + ... + 23092.

It is an arithmetic number, because the mean of its divisors is an integer number (7622307).

Almost surely, 2^74385142 is an apocalyptic number.

74385142 is a deficient number, since it is larger than the sum of its proper divisors (47571770).

74385142 is a wasteful number, since it uses less digits than its factorization.

74385142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42783.

The product of its digits is 26880, while the sum is 34.

The square root of 74385142 is about 8624.6821390704. The cubic root of 74385142 is about 420.5607438346.

The spelling of 74385142 in words is "seventy-four million, three hundred eighty-five thousand, one hundred forty-two".