74745042 has 16 divisors (see below), whose sum is σ = 149758752. Its totient is φ = 24870240.

The previous prime is 74745023. The next prime is 74745043. The reversal of 74745042 is 24054747.

It is a junction number, because it is equal to n+sod(n) for n = 74744994 and 74745012.

It is not an unprimeable number, because it can be changed into a prime (74745043) 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 7 ways as a sum of consecutive naturals, for example, 7483 + ... + 14334.

It is an arithmetic number, because the mean of its divisors is an integer number (9359922).

Almost surely, 2^74745042 is an apocalyptic number.

74745042 is an abundant number, since it is smaller than the sum of its proper divisors (75013710).

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

74745042 is a wasteful number, since it uses less digits than its factorization.

74745042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22393.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 74745042 is about 8645.5214995973. The cubic root of 74745042 is about 421.2379236765.

Adding to 74745042 its reverse (24054747), we get a palindrome (98799789).

The spelling of 74745042 in words is "seventy-four million, seven hundred forty-five thousand, forty-two".