20695330 has 8 divisors (see below), whose sum is σ = 37251612. Its totient is φ = 8278128.

The previous prime is 20695319. The next prime is 20695343. The reversal of 20695330 is 3359602.

It can be written as a sum of positive squares in 2 ways, for example, as 20493729 + 201601 = 4527^2 + 449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1034757 + ... + 1034776.

Almost surely, 2^20695330 is an apocalyptic number.

20695330 is a deficient number, since it is larger than the sum of its proper divisors (16556282).

20695330 is a wasteful number, since it uses less digits than its factorization.

20695330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069540.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 20695330 is about 4549.2120196799. The cubic root of 20695330 is about 274.5516882812.

It can be divided in two parts, 20695 and 330, that added together give a square (21025 = 145²).

The spelling of 20695330 in words is "twenty million, six hundred ninety-five thousand, three hundred thirty".