21232995 has 16 divisors (see below), whose sum is σ = 38826240. Its totient is φ = 9706464.

The previous prime is 21232993. The next prime is 21233011. The reversal of 21232995 is 59923212.

It is not a de Polignac number, because 21232995 - 2¹ = 21232993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21232993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101005 + ... + 101214.

It is an arithmetic number, because the mean of its divisors is an integer number (2426640).

Almost surely, 2^21232995 is an apocalyptic number.

21232995 is a deficient number, since it is larger than the sum of its proper divisors (17593245).

21232995 is a wasteful number, since it uses less digits than its factorization.

21232995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202234.

The product of its digits is 9720, while the sum is 33.

The square root of 21232995 is about 4607.9274082824. The cubic root of 21232995 is about 276.9090092866.

The spelling of 21232995 in words is "twenty-one million, two hundred thirty-two thousand, nine hundred ninety-five".