20535364 has 24 divisors (see below), whose sum is σ = 37396800. Its totient is φ = 9854880.

The previous prime is 20535349. The next prime is 20535367. The reversal of 20535364 is 46353502.

It is a super-2 number, since 2×20535364² = 843402349224992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20535367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24057 + ... + 24895.

It is an arithmetic number, because the mean of its divisors is an integer number (1558200).

Almost surely, 2^20535364 is an apocalyptic number.

It is an amenable number.

20535364 is a deficient number, since it is larger than the sum of its proper divisors (16861436).

20535364 is a wasteful number, since it uses less digits than its factorization.

20535364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 20535364 is about 4531.5961867757. The cubic root of 20535364 is about 273.8424689876.

Adding to 20535364 its reverse (46353502), we get a palindrome (66888866).

The spelling of 20535364 in words is "twenty million, five hundred thirty-five thousand, three hundred sixty-four".