90250422 has 16 divisors (see below), whose sum is σ = 180733680. Its totient is φ = 30044672.

The previous prime is 90250417. The next prime is 90250423. The reversal of 90250422 is 22405209.

It is a junction number, because it is equal to n+sod(n) for n = 90250392 and 90250401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90250423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4443 + ... + 14150.

It is an arithmetic number, because the mean of its divisors is an integer number (11295855).

Almost surely, 2^90250422 is an apocalyptic number.

90250422 is an abundant number, since it is smaller than the sum of its proper divisors (90483258).

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

90250422 is a wasteful number, since it uses less digits than its factorization.

90250422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19407.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 90250422 is about 9500.0222105004. The cubic root of 90250422 is about 448.5557350550. Note that the first 3 decimals are identical.

The spelling of 90250422 in words is "ninety million, two hundred fifty thousand, four hundred twenty-two".