890392272228 has 30 divisors (see below), whose sum is σ = 2327661280406. Its totient is φ = 296797423968.

The previous prime is 890392272223. The next prime is 890392272239. The reversal of 890392272228 is 822272293098.

It is a happy number.

890392272228 is a `hidden beast` number, since 8 + 9 + 0 + 392 + 27 + 2 + 228 = 666.

It can be written as a sum of positive squares in only one way, i.e., 890169606144 + 222666084 = 943488^2 + 14922^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (890392272223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1374061825 + ... + 1374062472.

Almost surely, 2^890392272228 is an apocalyptic number.

It is an amenable number.

890392272228 is an abundant number, since it is smaller than the sum of its proper divisors (1437269008178).

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

890392272228 is a wasteful number, since it uses less digits than its factorization.

890392272228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748124313 (or 2748124302 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 890392272228 in words is "eight hundred ninety billion, three hundred ninety-two million, two hundred seventy-two thousand, two hundred twenty-eight".