64442130 has 16 divisors (see below), whose sum is σ = 154661184. Its totient is φ = 17184560.

The previous prime is 64442107. The next prime is 64442171. The reversal of 64442130 is 3124446.

It is a self number, because there is not a number n which added to its sum of digits gives 64442130.

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, 1074006 + ... + 1074065.

It is an arithmetic number, because the mean of its divisors is an integer number (9666324).

Almost surely, 2^64442130 is an apocalyptic number.

64442130 is an abundant number, since it is smaller than the sum of its proper divisors (90219054).

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

64442130 is a wasteful number, since it uses less digits than its factorization.

64442130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148081.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 64442130 is about 8027.5855647885. The cubic root of 64442130 is about 400.9189911877.

Adding to 64442130 its reverse (3124446), we get a palindrome (67566576).

The spelling of 64442130 in words is "sixty-four million, four hundred forty-two thousand, one hundred thirty".