65210742 has 48 divisors (see below), whose sum is σ = 151126560. Its totient is φ = 20249856.

The previous prime is 65210737. The next prime is 65210771. The reversal of 65210742 is 24701256.

65210742 is a `hidden beast` number, since 652 + 1 + 0 + 7 + 4 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30484 + ... + 32552.

It is an arithmetic number, because the mean of its divisors is an integer number (3148470).

Almost surely, 2^65210742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65210742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75563280).

65210742 is an abundant number, since it is smaller than the sum of its proper divisors (85915818).

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

65210742 is a wasteful number, since it uses less digits than its factorization.

65210742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197 (or 2194 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 65210742 is about 8075.3168358895. The cubic root of 65210742 is about 402.5066382661.

Adding to 65210742 its reverse (24701256), we get a palindrome (89911998).

The spelling of 65210742 in words is "sixty-five million, two hundred ten thousand, seven hundred forty-two".