18442941 has 36 divisors (see below), whose sum is σ = 28817376. Its totient is φ = 10464080.

The previous prime is 18442891. The next prime is 18442967. The reversal of 18442941 is 14924481.

It is not a de Polignac number, because 18442941 - 2¹¹ = 18440893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18442441) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 392380 + ... + 392426.

Almost surely, 2^18442941 is an apocalyptic number.

18442941 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18442941 is a deficient number, since it is larger than the sum of its proper divisors (10374435).

18442941 is a wasteful number, since it uses less digits than its factorization.

18442941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 84 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 18442941 is about 4294.5245371286. The cubic root of 18442941 is about 264.2064357570.

The spelling of 18442941 in words is "eighteen million, four hundred forty-two thousand, nine hundred forty-one".