20264695 has 12 divisors (see below), whose sum is σ = 26572104. Its totient is φ = 14713680.

The previous prime is 20264693. The next prime is 20264711. The reversal of 20264695 is 59646202.

20264695 = T₁₉₁₄ + T₁₉₁₅ + ... + T₁₉₂₄.

It is not a de Polignac number, because 20264695 - 2¹ = 20264693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20264695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20264693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33082 + ... + 33688.

It is an arithmetic number, because the mean of its divisors is an integer number (2214342).

Almost surely, 2^20264695 is an apocalyptic number.

20264695 is a deficient number, since it is larger than the sum of its proper divisors (6307409).

20264695 is an frugal number, since it uses more digits than its factorization.

20264695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 20264695 is about 4501.6324816671. The cubic root of 20264695 is about 272.6340052965.

The spelling of 20264695 in words is "twenty million, two hundred sixty-four thousand, six hundred ninety-five".