74734142 has 32 divisors (see below), whose sum is σ = 137039040. Its totient is φ = 29836800.

The previous prime is 74734141. The next prime is 74734147. The reversal of 74734142 is 24143747.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 74734099 and 74734108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74734141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22484 + ... + 25592.

It is an arithmetic number, because the mean of its divisors is an integer number (4282470).

Almost surely, 2^74734142 is an apocalyptic number.

74734142 is a deficient number, since it is larger than the sum of its proper divisors (62304898).

74734142 is a wasteful number, since it uses less digits than its factorization.

74734142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236.

The product of its digits is 18816, while the sum is 32.

The square root of 74734142 is about 8644.8910924314. The cubic root of 74734142 is about 421.2174464361.

Adding to 74734142 its reverse (24143747), we get a palindrome (98877889).

The spelling of 74734142 in words is "seventy-four million, seven hundred thirty-four thousand, one hundred forty-two".