74747630 has 16 divisors (see below), whose sum is σ = 134750304. Its totient is φ = 29853600.

The previous prime is 74747599. The next prime is 74747639. The reversal of 74747630 is 3674747.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74747639) 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, 1679 + ... + 12341.

It is an arithmetic number, because the mean of its divisors is an integer number (8421894).

Almost surely, 2^74747630 is an apocalyptic number.

74747630 is a deficient number, since it is larger than the sum of its proper divisors (60002674).

74747630 is a wasteful number, since it uses less digits than its factorization.

74747630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11371.

The product of its (nonzero) digits is 98784, while the sum is 38.

The square root of 74747630 is about 8645.6711711700. The cubic root of 74747630 is about 421.2427853196.

The spelling of 74747630 in words is "seventy-four million, seven hundred forty-seven thousand, six hundred thirty".