64153340 has 24 divisors (see below), whose sum is σ = 135586752. Its totient is φ = 25496640.

The previous prime is 64153339. The next prime is 64153351. The reversal of 64153340 is 4335146.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7076 + ... + 13355.

It is an arithmetic number, because the mean of its divisors is an integer number (5649448).

Almost surely, 2^64153340 is an apocalyptic number.

It is an amenable number.

64153340 is an abundant number, since it is smaller than the sum of its proper divisors (71433412).

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

64153340 is a wasteful number, since it uses less digits than its factorization.

64153340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20597 (or 20595 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 64153340 is about 8009.5780163502. The cubic root of 64153340 is about 400.3192035383.

Adding to 64153340 its reverse (4335146), we get a palindrome (68488486).

The spelling of 64153340 in words is "sixty-four million, one hundred fifty-three thousand, three hundred forty".