18703942 has 16 divisors (see below), whose sum is σ = 30020400. Its totient is φ = 8713440.

The previous prime is 18703933. The next prime is 18703969. The reversal of 18703942 is 24930781.

It is a junction number, because it is equal to n+sod(n) for n = 18703898 and 18703907.

It is a congruent number.

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, 1717 + ... + 6352.

It is an arithmetic number, because the mean of its divisors is an integer number (1876275).

Almost surely, 2^18703942 is an apocalyptic number.

18703942 is a deficient number, since it is larger than the sum of its proper divisors (11316458).

18703942 is a wasteful number, since it uses less digits than its factorization.

18703942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8151.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 18703942 is about 4324.8054291494. The cubic root of 18703942 is about 265.4469353673.

The spelling of 18703942 in words is "eighteen million, seven hundred three thousand, nine hundred forty-two".