18498480 has 360 divisors, whose sum is σ = 78963696. Its totient is φ = 3548160.

The previous prime is 18498479. The next prime is 18498523. The reversal of 18498480 is 8489481.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1422954 + ... + 1422966.

Almost surely, 2^18498480 is an apocalyptic number.

18498480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18498480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39481848).

18498480 is an abundant number, since it is smaller than the sum of its proper divisors (60465216).

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

18498480 is a wasteful number, since it uses less digits than its factorization.

18498480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 18498480 is about 4300.9859334808. The cubic root of 18498480 is about 264.4713800578.

The spelling of 18498480 in words is "eighteen million, four hundred ninety-eight thousand, four hundred eighty".