65742320 has 120 divisors (see below), whose sum is σ = 183881088. Its totient is φ = 21772800.

The previous prime is 65742319. The next prime is 65742329. The reversal of 65742320 is 2324756.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65742329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121250 + ... + 121790.

Almost surely, 2^65742320 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 65742320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91940544).

65742320 is an abundant number, since it is smaller than the sum of its proper divisors (118138768).

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

65742320 is a wasteful number, since it uses less digits than its factorization.

65742320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 65742320 is about 8108.1637871962. The cubic root of 65742320 is about 403.5973834263.

The spelling of 65742320 in words is "sixty-five million, seven hundred forty-two thousand, three hundred twenty".