18480976 has 10 divisors (see below), whose sum is σ = 35806922. Its totient is φ = 9240480.

The previous prime is 18480971. The next prime is 18480997. The reversal of 18480976 is 67908481.

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 6370576 = 3480^2 + 2524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18480971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577515 + ... + 577546.

Almost surely, 2^18480976 is an apocalyptic number.

18480976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18480976 is a deficient number, since it is larger than the sum of its proper divisors (17325946).

18480976 is a wasteful number, since it uses less digits than its factorization.

18480976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155069 (or 1155063 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 18480976 is about 4298.9505696158. The cubic root of 18480976 is about 264.3879359415.

It can be divided in two parts, 18 and 480976, that multiplied together give a palindrome (8657568).

The spelling of 18480976 in words is "eighteen million, four hundred eighty thousand, nine hundred seventy-six".