65480436 has 72 divisors (see below), whose sum is σ = 190270080. Its totient is φ = 18599616.

The previous prime is 65480431. The next prime is 65480473. The reversal of 65480436 is 63408456.

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

It is a self number, because there is not a number n which added to its sum of digits gives 65480436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65480431) 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, 48985 + ... + 50303.

It is an arithmetic number, because the mean of its divisors is an integer number (2642640).

Almost surely, 2^65480436 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 65480436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95135040).

65480436 is an abundant number, since it is smaller than the sum of its proper divisors (124789644).

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

65480436 is a wasteful number, since it uses less digits than its factorization.

65480436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 65480436 is about 8091.9982698960. The cubic root of 65480436 is about 403.0607612801.

The spelling of 65480436 in words is "sixty-five million, four hundred eighty thousand, four hundred thirty-six".