2312213040 has 280 divisors, whose sum is σ = 8265283488. Its totient is φ = 600929280.

The previous prime is 2312213021. The next prime is 2312213077. The reversal of 2312213040 is 403122132.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 2390637 + ... + 2391603.

Almost surely, 2^2312213040 is an apocalyptic number.

2312213040 is a gapful number since it is divisible by the number (20) 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 2312213040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4132641744).

2312213040 is an abundant number, since it is smaller than the sum of its proper divisors (5953070448).

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

2312213040 is an equidigital number, since it uses as much as digits as its factorization.

2312213040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2312213040 is about 48085.4763936056. The cubic root of 2312213040 is about 1322.3384169661.

Adding to 2312213040 its reverse (403122132), we get a palindrome (2715335172).

The spelling of 2312213040 in words is "two billion, three hundred twelve million, two hundred thirteen thousand, forty".