74457842 has 8 divisors (see below), whose sum is σ = 113260032. Its totient is φ = 36704500.

The previous prime is 74457809. The next prime is 74457853. The reversal of 74457842 is 24875447.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 74457842.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262034 + ... + 262317.

It is an arithmetic number, because the mean of its divisors is an integer number (14157504).

Almost surely, 2^74457842 is an apocalyptic number.

74457842 is a deficient number, since it is larger than the sum of its proper divisors (38802190).

74457842 is a wasteful number, since it uses less digits than its factorization.

74457842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524424.

The product of its digits is 250880, while the sum is 41.

The square root of 74457842 is about 8628.8957578592. The cubic root of 74457842 is about 420.6977103038.

The spelling of 74457842 in words is "seventy-four million, four hundred fifty-seven thousand, eight hundred forty-two".