20283164 has 12 divisors (see below), whose sum is σ = 38722488. Its totient is φ = 9219600.

The previous prime is 20283139. The next prime is 20283167. The reversal of 20283164 is 46138202.

20283164 = 135² + 136² + ... + 398².

It is a super-2 number, since 2×20283164² = 822813483701792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20283167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230447 + ... + 230534.

It is an arithmetic number, because the mean of its divisors is an integer number (3226874).

Almost surely, 2^20283164 is an apocalyptic number.

It is an amenable number.

20283164 is a deficient number, since it is larger than the sum of its proper divisors (18439324).

20283164 is a wasteful number, since it uses less digits than its factorization.

20283164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460996 (or 460994 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20283164 is about 4503.6833814113. The cubic root of 20283164 is about 272.7168052683.

The spelling of 20283164 in words is "twenty million, two hundred eighty-three thousand, one hundred sixty-four".