65280492 has 84 divisors (see below), whose sum is σ = 174565216. Its totient is φ = 21345120.

The previous prime is 65280461. The next prime is 65280497. The reversal of 65280492 is 29408256.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (65280497) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 177693 + ... + 178059.

Almost surely, 2^65280492 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 65280492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87282608).

65280492 is an abundant number, since it is smaller than the sum of its proper divisors (109284724).

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

65280492 is a wasteful number, since it uses less digits than its factorization.

65280492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 65280492 is about 8079.6343976692. The cubic root of 65280492 is about 402.6500953786.

The spelling of 65280492 in words is "sixty-five million, two hundred eighty thousand, four hundred ninety-two".