64130430 has 128 divisors (see below), whose sum is σ = 191923200. Its totient is φ = 13433472.

The previous prime is 64130401. The next prime is 64130431. The reversal of 64130430 is 3403146.

It is a super-2 number, since 2×64130430² = 8225424103969800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 64130397 and 64130406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64130431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 461301 + ... + 461439.

It is an arithmetic number, because the mean of its divisors is an integer number (1499400).

Almost surely, 2^64130430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64130430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95961600).

64130430 is an abundant number, since it is smaller than the sum of its proper divisors (127792770).

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

64130430 is a wasteful number, since it uses less digits than its factorization.

64130430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 64130430 is about 8008.1477259102. The cubic root of 64130430 is about 400.2715447835.

Adding to 64130430 its reverse (3403146), we get a palindrome (67533576).

The spelling of 64130430 in words is "sixty-four million, one hundred thirty thousand, four hundred thirty".