18674480 has 40 divisors (see below), whose sum is σ = 47367504. Its totient is φ = 6790400.

The previous prime is 18674471. The next prime is 18674489. The reversal of 18674480 is 8447681.

18674480 = 259² + 260² + ... + 418².

It is an interprime number because it is at equal distance from previous prime (18674471) and next prime (18674489).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (18674489) 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, 9731 + ... + 11490.

Almost surely, 2^18674480 is an apocalyptic number.

18674480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18674480 is an abundant number, since it is smaller than the sum of its proper divisors (28693024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18674480 is a wasteful number, since it uses less digits than its factorization.

18674480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21245 (or 21239 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 18674480 is about 4321.3979219692. The cubic root of 18674480 is about 265.3074869116.

The spelling of 18674480 in words is "eighteen million, six hundred seventy-four thousand, four hundred eighty".