18922941 has 6 divisors (see below), whose sum is σ = 27333150. Its totient is φ = 12615288.

The previous prime is 18922931. The next prime is 18923039. The reversal of 18922941 is 14922981.

It can be written as a sum of positive squares in only one way, i.e., 18922500 + 441 = 4350^2 + 21^2 .

It is not a de Polignac number, because 18922941 - 2⁵ = 18922909 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18922896 and 18922905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18922901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1051266 + ... + 1051283.

It is an arithmetic number, because the mean of its divisors is an integer number (4555525).

Almost surely, 2^18922941 is an apocalyptic number.

It is an amenable number.

18922941 is a deficient number, since it is larger than the sum of its proper divisors (8410209).

18922941 is a wasteful number, since it uses less digits than its factorization.

18922941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102555 (or 2102552 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 18922941 is about 4350.0506893598. The cubic root of 18922941 is about 266.4789315796.

The spelling of 18922941 in words is "eighteen million, nine hundred twenty-two thousand, nine hundred forty-one".