65360040 has 32 divisors (see below), whose sum is σ = 196080480. Its totient is φ = 17429312.

The previous prime is 65360021. The next prime is 65360063. The reversal of 65360040 is 4006356.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272214 + ... + 272453.

It is an arithmetic number, because the mean of its divisors is an integer number (6127515).

Almost surely, 2^65360040 is an apocalyptic number.

65360040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65360040 is an abundant number, since it is smaller than the sum of its proper divisors (130720440).

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

65360040 is a wasteful number, since it uses less digits than its factorization.

65360040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544681 (or 544677 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 65360040 is about 8084.5556464162. Note that the first 3 decimals coincide. The cubic root of 65360040 is about 402.8135796880.

Adding to 65360040 its reverse (4006356), we get a palindrome (69366396).

The spelling of 65360040 in words is "sixty-five million, three hundred sixty thousand, forty".