21962234 has 16 divisors (see below), whose sum is σ = 37734336. Its totient is φ = 9391200.

The previous prime is 21962209. The next prime is 21962261. The reversal of 21962234 is 43226912.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21962197 and 21962206.

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, 5789 + ... + 8799.

It is an arithmetic number, because the mean of its divisors is an integer number (2358396).

Almost surely, 2^21962234 is an apocalyptic number.

21962234 is a deficient number, since it is larger than the sum of its proper divisors (15772102).

21962234 is a wasteful number, since it uses less digits than its factorization.

21962234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541.

The product of its digits is 5184, while the sum is 29.

The square root of 21962234 is about 4686.3881614736. The cubic root of 21962234 is about 280.0435051448.

The spelling of 21962234 in words is "twenty-one million, nine hundred sixty-two thousand, two hundred thirty-four".