65354440 has 32 divisors (see below), whose sum is σ = 150180480. Its totient is φ = 25584832.

The previous prime is 65354411. The next prime is 65354441. The reversal of 65354440 is 4445356.

It is not an unprimeable number, because it can be changed into a prime (65354441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15502 + ... + 19261.

It is an arithmetic number, because the mean of its divisors is an integer number (4693140).

Almost surely, 2^65354440 is an apocalyptic number.

It is an amenable number.

65354440 is an abundant number, since it is smaller than the sum of its proper divisors (84826040).

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

65354440 is a wasteful number, since it uses less digits than its factorization.

65354440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34821 (or 34817 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 65354440 is about 8084.2092996161. The cubic root of 65354440 is about 402.8020751027.

Adding to 65354440 its reverse (4445356), we get a palindrome (69799796).

The spelling of 65354440 in words is "sixty-five million, three hundred fifty-four thousand, four hundred forty".