74563730 has 8 divisors (see below), whose sum is σ = 134214732. Its totient is φ = 29825488.

The previous prime is 74563729. The next prime is 74563747. The reversal of 74563730 is 3736547.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70274689 + 4289041 = 8383^2 + 2071^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3728177 + ... + 3728196.

Almost surely, 2^74563730 is an apocalyptic number.

74563730 is a deficient number, since it is larger than the sum of its proper divisors (59651002).

74563730 is a wasteful number, since it uses less digits than its factorization.

74563730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7456380.

The product of its (nonzero) digits is 52920, while the sum is 35.

The square root of 74563730 is about 8635.0292414097. The cubic root of 74563730 is about 420.8970434102.

The spelling of 74563730 in words is "seventy-four million, five hundred sixty-three thousand, seven hundred thirty".