2251110240 has 72 divisors (see below), whose sum is σ = 7681918608. Its totient is φ = 600295680.

The previous prime is 2251110227. The next prime is 2251110269. The reversal of 2251110240 is 420111522.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 780196 + ... + 783075.

It is an arithmetic number, because the mean of its divisors is an integer number (106693314).

Almost surely, 2^2251110240 is an apocalyptic number.

2251110240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2251110240 is an abundant number, since it is smaller than the sum of its proper divisors (5430808368).

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

2251110240 is a wasteful number, since it uses less digits than its factorization.

2251110240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563292 (or 1563281 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2251110240 is about 47445.8664163697. The cubic root of 2251110240 is about 1310.5861914361.

Adding to 2251110240 its reverse (420111522), we get a palindrome (2671221762).

The spelling of 2251110240 in words is "two billion, two hundred fifty-one million, one hundred ten thousand, two hundred forty".