74453242 has 8 divisors (see below), whose sum is σ = 112559616. Its totient is φ = 36933372.

The previous prime is 74453219. The next prime is 74453243. The reversal of 74453242 is 24235447.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (74453243) by changing a digit.

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, 146308 + ... + 146815.

It is an arithmetic number, because the mean of its divisors is an integer number (14069952).

Almost surely, 2^74453242 is an apocalyptic number.

74453242 is a deficient number, since it is larger than the sum of its proper divisors (38106374).

74453242 is a wasteful number, since it uses less digits than its factorization.

74453242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293252.

The product of its digits is 26880, while the sum is 31.

The square root of 74453242 is about 8628.6292074697. The cubic root of 74453242 is about 420.6890465675.

Adding to 74453242 its reverse (24235447), we get a palindrome (98688689).

The spelling of 74453242 in words is "seventy-four million, four hundred fifty-three thousand, two hundred forty-two".