18341420 has 24 divisors (see below), whose sum is σ = 38623200. Its totient is φ = 7316352.

The previous prime is 18341417. The next prime is 18341431. The reversal of 18341420 is 2414381.

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, 7736 + ... + 9824.

It is an arithmetic number, because the mean of its divisors is an integer number (1609300).

Almost surely, 2^18341420 is an apocalyptic number.

18341420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18341420 is an abundant number, since it is smaller than the sum of its proper divisors (20281780).

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

18341420 is a wasteful number, since it uses less digits than its factorization.

18341420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537 (or 2535 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 18341420 is about 4282.6884079979. The cubic root of 18341420 is about 263.7207599938.

The spelling of 18341420 in words is "eighteen million, three hundred forty-one thousand, four hundred twenty".