64211642 has 32 divisors (see below), whose sum is σ = 108725760. Its totient is φ = 28188720.

The previous prime is 64211639. The next prime is 64211657. The reversal of 64211642 is 24611246.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97109 + ... + 97767.

It is an arithmetic number, because the mean of its divisors is an integer number (3397680).

Almost surely, 2^64211642 is an apocalyptic number.

64211642 is a deficient number, since it is larger than the sum of its proper divisors (44514118).

64211642 is a wasteful number, since it uses less digits than its factorization.

64211642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818.

The product of its digits is 2304, while the sum is 26.

The square root of 64211642 is about 8013.2167074153. The cubic root of 64211642 is about 400.4404356963.

Adding to 64211642 its reverse (24611246), we get a palindrome (88822888).

The spelling of 64211642 in words is "sixty-four million, two hundred eleven thousand, six hundred forty-two".