9923190 has 48 divisors (see below), whose sum is σ = 24576048. Its totient is φ = 2563392.

The previous prime is 9923171. The next prime is 9923201. The reversal of 9923190 is 913299.

It is a super-2 number, since 2×9923190² = 196939399552200, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125571 + ... + 125649.

It is an arithmetic number, because the mean of its divisors is an integer number (512001).

Almost surely, 2^9923190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9923190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12288024).

9923190 is an abundant number, since it is smaller than the sum of its proper divisors (14652858).

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

9923190 is a wasteful number, since it uses less digits than its factorization.

9923190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 9923190 is about 3150.1095219055. The cubic root of 9923190 is about 214.8904435524.

The spelling of 9923190 in words is "nine million, nine hundred twenty-three thousand, one hundred ninety".