74740522 has 8 divisors (see below), whose sum is σ = 112357476. Its totient is φ = 37288032.

The previous prime is 74740513. The next prime is 74740529. The reversal of 74740522 is 22504747.

It can be written as a sum of positive squares in 2 ways, for example, as 65431921 + 9308601 = 8089^2 + 3051^2 .

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

It is a super-2 number, since 2×74740522² = 11172291257664968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74740529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39973 + ... + 41800.

Almost surely, 2^74740522 is an apocalyptic number.

74740522 is a deficient number, since it is larger than the sum of its proper divisors (37616954).

74740522 is a wasteful number, since it uses less digits than its factorization.

74740522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82232.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 74740522 is about 8645.2600886266. The cubic root of 74740522 is about 421.2294324386.

The spelling of 74740522 in words is "seventy-four million, seven hundred forty thousand, five hundred twenty-two".