64842446 has 4 divisors (see below), whose sum is σ = 97263672. Its totient is φ = 32421222.

The previous prime is 64842439. The next prime is 64842457. The reversal of 64842446 is 64424846.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 16210610 + ... + 16210613.

It is an arithmetic number, because the mean of its divisors is an integer number (24315918).

Almost surely, 2^64842446 is an apocalyptic number.

64842446 is a deficient number, since it is larger than the sum of its proper divisors (32421226).

64842446 is a wasteful number, since it uses less digits than its factorization.

64842446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32421225.

The product of its digits is 147456, while the sum is 38.

The square root of 64842446 is about 8052.4807357733. The cubic root of 64842446 is about 401.7474507563.

The spelling of 64842446 in words is "sixty-four million, eight hundred forty-two thousand, four hundred forty-six".