2303132240 has 20 divisors (see below), whose sum is σ = 5354782644. Its totient is φ = 921252864.

The previous prime is 2303132233. The next prime is 2303132263. The reversal of 2303132240 is 422313032.

It can be written as a sum of positive squares in 2 ways, for example, as 1028356624 + 1274775616 = 32068^2 + 35704^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×2303132240² = 10608836229854835200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14394497 + ... + 14394656.

Almost surely, 2^2303132240 is an apocalyptic number.

2303132240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2303132240 is an abundant number, since it is smaller than the sum of its proper divisors (3051650404).

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

2303132240 is a wasteful number, since it uses less digits than its factorization.

2303132240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28789166 (or 28789160 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2303132240 is about 47990.9599820633. The cubic root of 2303132240 is about 1320.6050638991.

Adding to 2303132240 its reverse (422313032), we get a palindrome (2725445272).

The spelling of 2303132240 in words is "two billion, three hundred three million, one hundred thirty-two thousand, two hundred forty".