8633420460 has 144 divisors (see below), whose sum is σ = 30625410816. Its totient is φ = 1927449216.

The previous prime is 8633420399. The next prime is 8633420501. The reversal of 8633420460 is 640243368.

It is a happy number.

It is a super-2 number, since 2×8633420460² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25494 + ... + 133853.

It is an arithmetic number, because the mean of its divisors is an integer number (212676464).

Almost surely, 2^8633420460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8633420460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15312705408).

8633420460 is an abundant number, since it is smaller than the sum of its proper divisors (21991990356).

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

8633420460 is a wasteful number, since it uses less digits than its factorization.

8633420460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159412 (or 159407 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 8633420460 is about 92916.2012783562. The cubic root of 8633420460 is about 2051.4501308144.

The spelling of 8633420460 in words is "eight billion, six hundred thirty-three million, four hundred twenty thousand, four hundred sixty".