2251128348 has 60 divisors (see below), whose sum is σ = 6725600112. Its totient is φ = 643178880.

The previous prime is 2251128337. The next prime is 2251128361. The reversal of 2251128348 is 8438211522.

It is a happy number.

2251128348 is a `hidden beast` number, since 22 + 511 + 2 + 83 + 48 = 666.

2251128348 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 494013 + ... + 498548.

Almost surely, 2^2251128348 is an apocalyptic number.

2251128348 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2251128348 is an abundant number, since it is smaller than the sum of its proper divisors (4474471764).

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

2251128348 is a wasteful number, since it uses less digits than its factorization.

2251128348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992584 (or 992573 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 2251128348 is about 47446.0572439903. The cubic root of 2251128348 is about 1310.5897055585.

The spelling of 2251128348 in words is "two billion, two hundred fifty-one million, one hundred twenty-eight thousand, three hundred forty-eight".