64240842 has 8 divisors (see below), whose sum is σ = 128481696. Its totient is φ = 21413612.

The previous prime is 64240837. The next prime is 64240859. The reversal of 64240842 is 24804246.

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

64240842 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5353398 + ... + 5353409.

It is an arithmetic number, because the mean of its divisors is an integer number (16060212).

Almost surely, 2^64240842 is an apocalyptic number.

64240842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64240842 is a wasteful number, since it uses less digits than its factorization.

64240842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10706812.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 64240842 is about 8015.0384902382. The cubic root of 64240842 is about 400.5011260861.

The spelling of 64240842 in words is "sixty-four million, two hundred forty thousand, eight hundred forty-two".