21934095 has 16 divisors (see below), whose sum is σ = 35313792. Its totient is φ = 11625120.

The previous prime is 21934093. The next prime is 21934127. The reversal of 21934095 is 59043912.

It is not a de Polignac number, because 21934095 - 2¹ = 21934093 is a prime.

It is a super-2 number, since 2×21934095² = 962209046938050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21934093) 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, 2041 + ... + 6930.

It is an arithmetic number, because the mean of its divisors is an integer number (2207112).

Almost surely, 2^21934095 is an apocalyptic number.

21934095 is a deficient number, since it is larger than the sum of its proper divisors (13379697).

21934095 is a wasteful number, since it uses less digits than its factorization.

21934095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9142.

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

The square root of 21934095 is about 4683.3849937839. The cubic root of 21934095 is about 279.9238525925.

The spelling of 21934095 in words is "twenty-one million, nine hundred thirty-four thousand, ninety-five".