1128202254 has 72 divisors (see below), whose sum is σ = 2669270760. Its totient is φ = 343931616.

The previous prime is 1128202253. The next prime is 1128202267. The reversal of 1128202254 is 4522028211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128202253) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 185449 + ... + 191435.

It is an arithmetic number, because the mean of its divisors is an integer number (37073205).

Almost surely, 2^1128202254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1128202254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334635380).

1128202254 is an abundant number, since it is smaller than the sum of its proper divisors (1541068506).

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

1128202254 is a wasteful number, since it uses less digits than its factorization.

1128202254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6062 (or 6040 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 1128202254 is about 33588.7221251419. The cubic root of 1128202254 is about 1041.0277851105.

The spelling of 1128202254 in words is "one billion, one hundred twenty-eight million, two hundred two thousand, two hundred fifty-four".