18880342 has 24 divisors (see below), whose sum is σ = 31082184. Its totient is φ = 8596224.

The previous prime is 18880327. The next prime is 18880361. The reversal of 18880342 is 24308881.

It is a junction number, because it is equal to n+sod(n) for n = 18880298 and 18880307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27718 + ... + 28390.

It is an arithmetic number, because the mean of its divisors is an integer number (1295091).

Almost surely, 2^18880342 is an apocalyptic number.

18880342 is a deficient number, since it is larger than the sum of its proper divisors (12201842).

18880342 is a wasteful number, since it uses less digits than its factorization.

18880342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 18880342 is about 4345.1515508668. The cubic root of 18880342 is about 266.2788170739.

The spelling of 18880342 in words is "eighteen million, eight hundred eighty thousand, three hundred forty-two".