10206990 has 96 divisors (see below), whose sum is σ = 28753920. Its totient is φ = 2503872.

The previous prime is 10206983. The next prime is 10206997. The reversal of 10206990 is 9960201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10206983) and next prime (10206997).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10206997) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80307 + ... + 80433.

It is an arithmetic number, because the mean of its divisors is an integer number (299520).

Almost surely, 2^10206990 is an apocalyptic number.

10206990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10206990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14376960).

10206990 is an abundant number, since it is smaller than the sum of its proper divisors (18546930).

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

10206990 is a wasteful number, since it uses less digits than its factorization.

10206990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 10206990 is about 3194.8380240632. The cubic root of 10206990 is about 216.9198171905.

The spelling of 10206990 in words is "ten million, two hundred six thousand, nine hundred ninety".