18741480 has 64 divisors (see below), whose sum is σ = 59538240. Its totient is φ = 4703232.

The previous prime is 18741473. The next prime is 18741487. The reversal of 18741480 is 8414781.

It is an interprime number because it is at equal distance from previous prime (18741473) and next prime (18741487).

It is not an unprimeable number, because it can be changed into a prime (18741487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2554 + ... + 6633.

It is an arithmetic number, because the mean of its divisors is an integer number (930285).

Almost surely, 2^18741480 is an apocalyptic number.

18741480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18741480 is an abundant number, since it is smaller than the sum of its proper divisors (40796760).

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

18741480 is a wasteful number, since it uses less digits than its factorization.

18741480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9218 (or 9214 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 18741480 is about 4329.1431022779. The cubic root of 18741480 is about 265.6243968614.

The spelling of 18741480 in words is "eighteen million, seven hundred forty-one thousand, four hundred eighty".