90220940 has 24 divisors (see below), whose sum is σ = 189897792. Its totient is φ = 36005760.

The previous prime is 90220913. The next prime is 90220967. The reversal of 90220940 is 4902209.

It is an interprime number because it is at equal distance from previous prime (90220913) and next prime (90220967).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4205 + ... + 14075.

It is an arithmetic number, because the mean of its divisors is an integer number (7912408).

Almost surely, 2^90220940 is an apocalyptic number.

It is an amenable number.

90220940 is an abundant number, since it is smaller than the sum of its proper divisors (99676852).

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

90220940 is a wasteful number, since it uses less digits than its factorization.

90220940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10337 (or 10335 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 90220940 is about 9498.4704031755. The cubic root of 90220940 is about 448.5068866761.

The spelling of 90220940 in words is "ninety million, two hundred twenty thousand, nine hundred forty".