65722460 has 24 divisors (see below), whose sum is σ = 140358960. Its totient is φ = 25842944.

The previous prime is 65722457. The next prime is 65722469. The reversal of 65722460 is 6422756.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65722469) 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, 26669 + ... + 29028.

It is an arithmetic number, because the mean of its divisors is an integer number (5848290).

Almost surely, 2^65722460 is an apocalyptic number.

It is an amenable number.

65722460 is an abundant number, since it is smaller than the sum of its proper divisors (74636500).

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

65722460 is a wasteful number, since it uses less digits than its factorization.

65722460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55765 (or 55763 counting only the distinct ones).

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

The square root of 65722460 is about 8106.9390031010. The cubic root of 65722460 is about 403.5567386215.

The spelling of 65722460 in words is "sixty-five million, seven hundred twenty-two thousand, four hundred sixty".