8672431220 has 24 divisors (see below), whose sum is σ = 18355513344. Its totient is φ = 3441656736.

The previous prime is 8672431219. The next prime is 8672431247. The reversal of 8672431220 is 221342768.

It is a super-2 number, since 2×8672431220² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 1704632 + ... + 1709711.

It is an arithmetic number, because the mean of its divisors is an integer number (764813056).

Almost surely, 2^8672431220 is an apocalyptic number.

It is an amenable number.

8672431220 is an abundant number, since it is smaller than the sum of its proper divisors (9683082124).

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

8672431220 is a wasteful number, since it uses less digits than its factorization.

8672431220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414479 (or 3414477 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 8672431220 is about 93125.8890964269. The cubic root of 8672431220 is about 2054.5353657761.

Adding to 8672431220 its reverse (221342768), we get a palindrome (8893773988).

The spelling of 8672431220 in words is "eight billion, six hundred seventy-two million, four hundred thirty-one thousand, two hundred twenty".