64853340 has 48 divisors (see below), whose sum is σ = 181948032. Its totient is φ = 17260096.

The previous prime is 64853297. The next prime is 64853359. The reversal of 64853340 is 4335846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48967 + ... + 50273.

It is an arithmetic number, because the mean of its divisors is an integer number (3790584).

Almost surely, 2^64853340 is an apocalyptic number.

64853340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64853340 is an abundant number, since it is smaller than the sum of its proper divisors (117094692).

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

64853340 is a wasteful number, since it uses less digits than its factorization.

64853340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146 (or 2144 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 64853340 is about 8053.1571448718. The cubic root of 64853340 is about 401.7699483224.

The spelling of 64853340 in words is "sixty-four million, eight hundred fifty-three thousand, three hundred forty".