2231615424 has 112 divisors (see below), whose sum is σ = 6165799200. Its totient is φ = 711438336.

The previous prime is 2231615387. The next prime is 2231615437. The reversal of 2231615424 is 4245161322.

It is a super-3 number, since 3×2231615424³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231615391 and 2231615400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605074 + ... + 608750.

Almost surely, 2^2231615424 is an apocalyptic number.

2231615424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231615424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3082899600).

2231615424 is an abundant number, since it is smaller than the sum of its proper divisors (3934183776).

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

2231615424 is a wasteful number, since it uses less digits than its factorization.

2231615424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3830 (or 3820 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 2231615424 is about 47239.9769686650. The cubic root of 2231615424 is about 1306.7919529089.

Adding to 2231615424 its reverse (4245161322), we get a palindrome (6476776746).

The spelling of 2231615424 in words is "two billion, two hundred thirty-one million, six hundred fifteen thousand, four hundred twenty-four".