74812730 has 16 divisors (see below), whose sum is σ = 135410184. Its totient is φ = 29759040.

The previous prime is 74812729. The next prime is 74812753. The reversal of 74812730 is 3721847.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 56055169 + 18757561 = 7487^2 + 4331^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18857 + ... + 22476.

Almost surely, 2^74812730 is an apocalyptic number.

74812730 is a deficient number, since it is larger than the sum of its proper divisors (60597454).

74812730 is a wasteful number, since it uses less digits than its factorization.

74812730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41521.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 74812730 is about 8649.4352416791. The cubic root of 74812730 is about 421.3650409150.

The spelling of 74812730 in words is "seventy-four million, eight hundred twelve thousand, seven hundred thirty".