64000422 has 32 divisors (see below), whose sum is σ = 143148000. Its totient is φ = 21194784.

The previous prime is 64000411. The next prime is 64000423. The reversal of 64000422 is 22400046.

64000422 is a `hidden beast` number, since 640 + 0 + 0 + 4 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 64000395 and 64000404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64000423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4704 + ... + 12252.

It is an arithmetic number, because the mean of its divisors is an integer number (4473375).

Almost surely, 2^64000422 is an apocalyptic number.

64000422 is an abundant number, since it is smaller than the sum of its proper divisors (79147578).

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

64000422 is a wasteful number, since it uses less digits than its factorization.

64000422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717 (or 7711 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 64000422 is about 8000.0263749565. The cubic root of 64000422 is about 400.0008791647. Note that the first 3 decimals are identical.

Adding to 64000422 its reverse (22400046), we get a palindrome (86400468).

The spelling of 64000422 in words is "sixty-four million, four hundred twenty-two", and thus it is an aban number.