65219742 has 96 divisors (see below), whose sum is σ = 176467200. Its totient is φ = 17635968.

The previous prime is 65219741. The next prime is 65219747. The reversal of 65219742 is 24791256.

65219742 is a `hidden beast` number, since 6 + 521 + 97 + 42 = 666.

It is a super-2 number, since 2×65219742² = 8507229493093128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65219697 and 65219706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65219741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64134 + ... + 65142.

It is an arithmetic number, because the mean of its divisors is an integer number (1838200).

Almost surely, 2^65219742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65219742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88233600).

65219742 is an abundant number, since it is smaller than the sum of its proper divisors (111247458).

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

65219742 is a wasteful number, since it uses less digits than its factorization.

65219742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052 (or 1040 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 65219742 is about 8075.8740703406. The cubic root of 65219742 is about 402.5251546076.

The spelling of 65219742 in words is "sixty-five million, two hundred nineteen thousand, seven hundred forty-two".