18960730 has 16 divisors (see below), whose sum is σ = 34469064. Its totient is φ = 7508800.

The previous prime is 18960713. The next prime is 18960743. The reversal of 18960730 is 3706981.

It can be written as a sum of positive squares in 4 ways, for example, as 18156121 + 804609 = 4261^2 + 897^2 .

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, 8377 + ... + 10396.

Almost surely, 2^18960730 is an apocalyptic number.

18960730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18960730 is a deficient number, since it is larger than the sum of its proper divisors (15508334).

18960730 is a wasteful number, since it uses less digits than its factorization.

18960730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18881.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 18960730 is about 4354.3920356348. The cubic root of 18960730 is about 266.6561992419.

The spelling of 18960730 in words is "eighteen million, nine hundred sixty thousand, seven hundred thirty".