65320460 has 48 divisors (see below), whose sum is σ = 151574976. Its totient is φ = 23519232.

The previous prime is 65320427. The next prime is 65320487. The reversal of 65320460 is 6402356.

65320460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65320460² = 8533524989223200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3644 + ... + 11996.

It is an arithmetic number, because the mean of its divisors is an integer number (3157812).

Almost surely, 2^65320460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65320460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75787488).

65320460 is an abundant number, since it is smaller than the sum of its proper divisors (86254516).

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

65320460 is a wasteful number, since it uses less digits than its factorization.

65320460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8402 (or 8400 counting only the distinct ones).

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

The square root of 65320460 is about 8082.1073984450. The cubic root of 65320460 is about 402.7322528262.

The spelling of 65320460 in words is "sixty-five million, three hundred twenty thousand, four hundred sixty".