65020436 has 24 divisors (see below), whose sum is σ = 126766920. Its totient is φ = 28973952.

The previous prime is 65020421. The next prime is 65020469. The reversal of 65020436 is 63402056.

It can be written as a sum of positive squares in 4 ways, for example, as 1976836 + 63043600 = 1406^2 + 7940^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20051 + ... + 23066.

It is an arithmetic number, because the mean of its divisors is an integer number (5281955).

Almost surely, 2^65020436 is an apocalyptic number.

It is an amenable number.

65020436 is a deficient number, since it is larger than the sum of its proper divisors (61746484).

65020436 is a wasteful number, since it uses less digits than its factorization.

65020436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43163 (or 43161 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 65020436 is about 8063.5250356156. The cubic root of 65020436 is about 402.1147086496.

It can be divided in two parts, 65020 and 436, that added together give a palindrome (65456).

The spelling of 65020436 in words is "sixty-five million, twenty thousand, four hundred thirty-six".