18420962 has 24 divisors (see below), whose sum is σ = 34036524. Its totient is φ = 7429632.

The previous prime is 18420959. The next prime is 18420973. The reversal of 18420962 is 26902481.

It can be written as a sum of positive squares in 2 ways, for example, as 18412681 + 8281 = 4291^2 + 91^2 .

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, 3863 + ... + 7194.

Almost surely, 2^18420962 is an apocalyptic number.

18420962 is a deficient number, since it is larger than the sum of its proper divisors (15615562).

18420962 is a wasteful number, since it uses less digits than its factorization.

18420962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11090 (or 11083 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 18420962 is about 4291.9648181223. The cubic root of 18420962 is about 264.1014398208.

The spelling of 18420962 in words is "eighteen million, four hundred twenty thousand, nine hundred sixty-two".