90200422 has 8 divisors (see below), whose sum is σ = 145708416. Its totient is φ = 41630952.

The previous prime is 90200401. The next prime is 90200423. The reversal of 90200422 is 22400209.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×90200422² = 16272232257956168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90200422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90200423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1734598 + ... + 1734649.

It is an arithmetic number, because the mean of its divisors is an integer number (18213552).

Almost surely, 2^90200422 is an apocalyptic number.

90200422 is a deficient number, since it is larger than the sum of its proper divisors (55507994).

90200422 is a wasteful number, since it uses less digits than its factorization.

90200422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3469262.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 90200422 is about 9497.3902731224. The cubic root of 90200422 is about 448.4728843628.

The spelling of 90200422 in words is "ninety million, two hundred thousand, four hundred twenty-two".