90126020 has 12 divisors (see below), whose sum is σ = 189264684. Its totient is φ = 36050400.

The previous prime is 90125999. The next prime is 90126041. The reversal of 90126020 is 2062109.

It is an interprime number because it is at equal distance from previous prime (90125999) and next prime (90126041).

It can be written as a sum of positive squares in 2 ways, for example, as 18181696 + 71944324 = 4264^2 + 8482^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 4506301 = 90126020 / (9 + 0 + 1 + 2 + 6 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 90125983 and 90126001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2253131 + ... + 2253170.

It is an arithmetic number, because the mean of its divisors is an integer number (15772057).

Almost surely, 2^90126020 is an apocalyptic number.

It is an amenable number.

90126020 is an abundant number, since it is smaller than the sum of its proper divisors (99138664).

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

90126020 is a wasteful number, since it uses less digits than its factorization.

90126020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506310 (or 4506308 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 90126020 is about 9493.4724942984. The cubic root of 90126020 is about 448.3495425227.

Adding to 90126020 its reverse (2062109), we get a palindrome (92188129).

The spelling of 90126020 in words is "ninety million, one hundred twenty-six thousand, twenty".