64240357 has 8 divisors (see below), whose sum is σ = 67116096. Its totient is φ = 61371552.

The previous prime is 64240271. The next prime is 64240361. The reversal of 64240357 is 75304246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64240357 - 2¹⁹ = 63716069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64240157) 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, 28993 + ... + 31129.

It is an arithmetic number, because the mean of its divisors is an integer number (8389512).

Almost surely, 2^64240357 is an apocalyptic number.

It is an amenable number.

64240357 is a deficient number, since it is larger than the sum of its proper divisors (2875739).

64240357 is a wasteful number, since it uses less digits than its factorization.

64240357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 64240357 is about 8015.0082345560. The cubic root of 64240357 is about 400.5001181939.

The spelling of 64240357 in words is "sixty-four million, two hundred forty thousand, three hundred fifty-seven".