64867340 has 24 divisors (see below), whose sum is σ = 137548320. Its totient is φ = 25694208.

The previous prime is 64867333. The next prime is 64867343. The reversal of 64867340 is 4376846.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64867294 and 64867303.

It is not an unprimeable number, because it can be changed into a prime (64867343) 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, 13685 + ... + 17804.

It is an arithmetic number, because the mean of its divisors is an integer number (5731180).

Almost surely, 2^64867340 is an apocalyptic number.

It is an amenable number.

64867340 is an abundant number, since it is smaller than the sum of its proper divisors (72680980).

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

64867340 is a wasteful number, since it uses less digits than its factorization.

64867340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31601 (or 31599 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 64867340 is about 8054.0263222813. The cubic root of 64867340 is about 401.7988564948.

The spelling of 64867340 in words is "sixty-four million, eight hundred sixty-seven thousand, three hundred forty".