64317340 has 48 divisors (see below), whose sum is σ = 137894400. Its totient is φ = 25195520.

The previous prime is 64317329. The next prime is 64317349. The reversal of 64317340 is 4371346.

It is a junction number, because it is equal to n+sod(n) for n = 64317299 and 64317308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64317349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336645 + ... + 336835.

It is an arithmetic number, because the mean of its divisors is an integer number (2872800).

Almost surely, 2^64317340 is an apocalyptic number.

It is an amenable number.

64317340 is an abundant number, since it is smaller than the sum of its proper divisors (73577060).

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

64317340 is a wasteful number, since it uses less digits than its factorization.

64317340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 64317340 is about 8019.8092246636. The cubic root of 64317340 is about 400.6600352845.

Adding to 64317340 its reverse (4371346), we get a palindrome (68688686).

The spelling of 64317340 in words is "sixty-four million, three hundred seventeen thousand, three hundred forty".