2251367460 has 120 divisors (see below), whose sum is σ = 7478163000. Its totient is φ = 565042176.

The previous prime is 2251367449. The next prime is 2251367497. The reversal of 2251367460 is 647631522.

2251367460 is a `hidden beast` number, since 2 + 251 + 367 + 46 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 56070144 + 2195297316 = 7488^2 + 46854^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13335 + ... + 68414.

It is an arithmetic number, because the mean of its divisors is an integer number (62318025).

Almost surely, 2^2251367460 is an apocalyptic number.

2251367460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2251367460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3739081500).

2251367460 is an abundant number, since it is smaller than the sum of its proper divisors (5226795540).

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

2251367460 is a wasteful number, since it uses less digits than its factorization.

2251367460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81787 (or 81776 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 2251367460 is about 47448.5770071137. The cubic root of 2251367460 is about 1310.6361069748.

Adding to 2251367460 its reverse (647631522), we get a palindrome (2898998982).

The spelling of 2251367460 in words is "two billion, two hundred fifty-one million, three hundred sixty-seven thousand, four hundred sixty".