2236690240 has 28 divisors (see below), whose sum is σ = 5326119396. Its totient is φ = 894675968.

The previous prime is 2236690237. The next prime is 2236690243. The reversal of 2236690240 is 420966322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2236690237) and next prime (2236690243).

It can be written as a sum of positive squares in 2 ways, for example, as 1182259456 + 1054430784 = 34384^2 + 32472^2 .

It is a super-2 number, since 2×2236690240² = 10005566459422515200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2236690196 and 2236690205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2236690243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3494509 + ... + 3495148.

Almost surely, 2^2236690240 is an apocalyptic number.

2236690240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2236690240 is an abundant number, since it is smaller than the sum of its proper divisors (3089429156).

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

2236690240 is an equidigital number, since it uses as much as digits as its factorization.

2236690240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6989674 (or 6989664 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 2236690240 is about 47293.6596173314. The cubic root of 2236690240 is about 1307.7817752008.

The spelling of 2236690240 in words is "two billion, two hundred thirty-six million, six hundred ninety thousand, two hundred forty".