74189722 has 16 divisors (see below), whose sum is σ = 112480200. Its totient is φ = 36698688.

The previous prime is 74189719. The next prime is 74189723. The reversal of 74189722 is 22798147.

It can be written as a sum of positive squares in 4 ways, for example, as 74149321 + 40401 = 8611^2 + 201^2 .

It is a super-2 number, since 2×74189722² = 11008229700874568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74189723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109248 + ... + 109924.

Almost surely, 2^74189722 is an apocalyptic number.

74189722 is a deficient number, since it is larger than the sum of its proper divisors (38290478).

74189722 is a wasteful number, since it uses less digits than its factorization.

74189722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185.

The product of its digits is 56448, while the sum is 40.

The square root of 74189722 is about 8613.3455753267. The cubic root of 74189722 is about 420.1921305387.

The spelling of 74189722 in words is "seventy-four million, one hundred eighty-nine thousand, seven hundred twenty-two".