9920190 has 64 divisors (see below), whose sum is σ = 27546624. Its totient is φ = 2239488.

The previous prime is 9920177. The next prime is 9920203. The reversal of 9920190 is 910299.

It is an interprime number because it is at equal distance from previous prime (9920177) and next prime (9920203).

It is a super-2 number, since 2×9920190² = 196820339272200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20127 + ... + 20613.

It is an arithmetic number, because the mean of its divisors is an integer number (430416).

Almost surely, 2^9920190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9920190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13773312).

9920190 is an abundant number, since it is smaller than the sum of its proper divisors (17626434).

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

9920190 is a wasteful number, since it uses less digits than its factorization.

9920190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 9920190 is about 3149.6333119905. The cubic root of 9920190 is about 214.8687859904.

The spelling of 9920190 in words is "nine million, nine hundred twenty thousand, one hundred ninety".