64227642 has 16 divisors (see below), whose sum is σ = 129319200. Its totient is φ = 21265232.

The previous prime is 64227623. The next prime is 64227697. The reversal of 64227642 is 24672246.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35028 + ... + 36815.

It is an arithmetic number, because the mean of its divisors is an integer number (8082450).

Almost surely, 2^64227642 is an apocalyptic number.

64227642 is an abundant number, since it is smaller than the sum of its proper divisors (65091558).

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

64227642 is a wasteful number, since it uses less digits than its factorization.

64227642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71997.

The product of its digits is 32256, while the sum is 33.

The square root of 64227642 is about 8014.2149958683. The cubic root of 64227642 is about 400.4736929826.

Adding to 64227642 its reverse (24672246), we get a palindrome (88899888).

The spelling of 64227642 in words is "sixty-four million, two hundred twenty-seven thousand, six hundred forty-two".