65209460 has 12 divisors (see below), whose sum is σ = 136939908. Its totient is φ = 26083776.

The previous prime is 65209421. The next prime is 65209471. The reversal of 65209460 is 6490256.

It can be written as a sum of positive squares in 2 ways, for example, as 37625956 + 27583504 = 6134^2 + 5252^2 .

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 congruent number.

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, 1630217 + ... + 1630256.

It is an arithmetic number, because the mean of its divisors is an integer number (11411659).

Almost surely, 2^65209460 is an apocalyptic number.

It is an amenable number.

65209460 is an abundant number, since it is smaller than the sum of its proper divisors (71730448).

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

65209460 is a wasteful number, since it uses less digits than its factorization.

65209460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260482 (or 3260480 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 65209460 is about 8075.2374578089. The cubic root of 65209460 is about 402.5040005775.

The spelling of 65209460 in words is "sixty-five million, two hundred nine thousand, four hundred sixty".