74870742 has 8 divisors (see below), whose sum is σ = 149741496. Its totient is φ = 24956912.

The previous prime is 74870717. The next prime is 74870743. The reversal of 74870742 is 24707847.

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

74870742 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 74870742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74870743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6239223 + ... + 6239234.

It is an arithmetic number, because the mean of its divisors is an integer number (18717687).

Almost surely, 2^74870742 is an apocalyptic number.

74870742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74870742 is a wasteful number, since it uses less digits than its factorization.

74870742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12478462.

The product of its (nonzero) digits is 87808, while the sum is 39.

The square root of 74870742 is about 8652.7881055761. The cubic root of 74870742 is about 421.4739257408.

The spelling of 74870742 in words is "seventy-four million, eight hundred seventy thousand, seven hundred forty-two".