65262740 has 12 divisors (see below), whose sum is σ = 137051796. Its totient is φ = 26105088.

The previous prime is 65262737. The next prime is 65262749. The reversal of 65262740 is 4726256.

It can be written as a sum of positive squares in 2 ways, for example, as 37405456 + 27857284 = 6116^2 + 5278^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 65262697 and 65262706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65262749) 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, 1631549 + ... + 1631588.

It is an arithmetic number, because the mean of its divisors is an integer number (11420983).

Almost surely, 2^65262740 is an apocalyptic number.

It is an amenable number.

65262740 is an abundant number, since it is smaller than the sum of its proper divisors (71789056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65262740 is a wasteful number, since it uses less digits than its factorization.

65262740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263146 (or 3263144 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 65262740 is about 8078.5357584156. The cubic root of 65262740 is about 402.6135939559.

Adding to 65262740 its reverse (4726256), we get a palindrome (69988996).

The spelling of 65262740 in words is "sixty-five million, two hundred sixty-two thousand, seven hundred forty".