64340242 has 8 divisors (see below), whose sum is σ = 96581232. Its totient is φ = 32146500.

The previous prime is 64340233. The next prime is 64340249. The reversal of 64340242 is 24204346.

64340242 is nontrivially palindromic in base 14.

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

It is not an unprimeable number, because it can be changed into a prime (64340249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8184 + ... + 13987.

It is an arithmetic number, because the mean of its divisors is an integer number (12072654).

Almost surely, 2^64340242 is an apocalyptic number.

64340242 is a deficient number, since it is larger than the sum of its proper divisors (32240990).

64340242 is a wasteful number, since it uses less digits than its factorization.

64340242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23624.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 64340242 is about 8021.2369370316. The cubic root of 64340242 is about 400.7075850704.

Adding to 64340242 its reverse (24204346), we get a palindrome (88544588).

The spelling of 64340242 in words is "sixty-four million, three hundred forty thousand, two hundred forty-two".