3628721430 has 112 divisors (see below), whose sum is σ = 10109602944. Its totient is φ = 936385920.

The previous prime is 3628721429. The next prime is 3628721489. The reversal of 3628721430 is 341278263.

It is a happy number.

3628721430 is a `hidden beast` number, since 3 + 628 + 7 + 21 + 4 + 3 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 217962 + ... + 234018.

It is an arithmetic number, because the mean of its divisors is an integer number (90264312).

Almost surely, 2^3628721430 is an apocalyptic number.

3628721430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3628721430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5054801472).

3628721430 is an abundant number, since it is smaller than the sum of its proper divisors (6480881514).

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

3628721430 is a wasteful number, since it uses less digits than its factorization.

3628721430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16113 (or 16098 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 3628721430 is about 60238.8697603134. The cubic root of 3628721430 is about 1536.6839071747.

Adding to 3628721430 its reverse (341278263), we get a palindrome (3969999693).

The spelling of 3628721430 in words is "three billion, six hundred twenty-eight million, seven hundred twenty-one thousand, four hundred thirty".