2312233440 has 96 divisors (see below), whose sum is σ = 7945693056. Its totient is φ = 560540160.

The previous prime is 2312233433. The next prime is 2312233457. The reversal of 2312233440 is 443322132.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2312233440.

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, 213682 + ... + 224241.

It is an arithmetic number, because the mean of its divisors is an integer number (82767636).

Almost surely, 2^2312233440 is an apocalyptic number.

2312233440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312233440 is an abundant number, since it is smaller than the sum of its proper divisors (5633459616).

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

2312233440 is a wasteful number, since it uses less digits than its factorization.

2312233440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437952 (or 437944 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 2312233440 is about 48085.6885153993. The cubic root of 2312233440 is about 1322.3423058270.

Adding to 2312233440 its reverse (443322132), we get a palindrome (2755555572).

The spelling of 2312233440 in words is "two billion, three hundred twelve million, two hundred thirty-three thousand, four hundred forty".