2261350140 has 48 divisors (see below), whose sum is σ = 7236321792. Its totient is φ = 516879936.

The previous prime is 2261350129. The next prime is 2261350141. The reversal of 2261350140 is 410531622.

It is a super-2 number, since 2×2261350140² = 10227408911356039200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2261350140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261350141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2691664 + ... + 2692503.

It is an arithmetic number, because the mean of its divisors is an integer number (150756704).

Almost surely, 2^2261350140 is an apocalyptic number.

2261350140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2261350140 is an abundant number, since it is smaller than the sum of its proper divisors (4974971652).

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

2261350140 is a wasteful number, since it uses less digits than its factorization.

2261350140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384186 (or 5384184 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2261350140 is about 47553.6553800021. The cubic root of 2261350140 is about 1312.5703936848.

Adding to 2261350140 its reverse (410531622), we get a palindrome (2671881762).

The spelling of 2261350140 in words is "two billion, two hundred sixty-one million, three hundred fifty thousand, one hundred forty".