10269990 has 80 divisors (see below), whose sum is σ = 28575360. Its totient is φ = 2643840.

The previous prime is 10269949. The next prime is 10269997. The reversal of 10269990 is 9996201.

10269990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10269997) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24906 + ... + 25314.

It is an arithmetic number, because the mean of its divisors is an integer number (357192).

Almost surely, 2^10269990 is an apocalyptic number.

10269990 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 10269990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14287680).

10269990 is an abundant number, since it is smaller than the sum of its proper divisors (18305370).

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

10269990 is a wasteful number, since it uses less digits than its factorization.

10269990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 10269990 is about 3204.6825115758. The cubic root of 10269990 is about 217.3651958964.

The spelling of 10269990 in words is "ten million, two hundred sixty-nine thousand, nine hundred ninety".