1128202425 has 240 divisors, whose sum is σ = 2592691200. Its totient is φ = 473558400.

The previous prime is 1128202391. The next prime is 1128202459. The reversal of 1128202425 is 5242028211.

1128202425 is a `hidden beast` number, since 11 + 28 + 202 + 425 = 666.

It is an interprime number because it is at equal distance from previous prime (1128202391) and next prime (1128202459).

It is not a de Polignac number, because 1128202425 - 2⁸ = 1128202169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 15890140 + ... + 15890210.

It is an arithmetic number, because the mean of its divisors is an integer number (10802880).

Almost surely, 2^1128202425 is an apocalyptic number.

1128202425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1128202425 is an abundant number, since it is smaller than the sum of its proper divisors (1464488775).

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

1128202425 is a wasteful number, since it uses less digits than its factorization.

1128202425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 164 counting only the distinct ones).

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

The square root of 1128202425 is about 33588.7246706391. The cubic root of 1128202425 is about 1041.0278377062.

The spelling of 1128202425 in words is "one billion, one hundred twenty-eight million, two hundred two thousand, four hundred twenty-five".