10403250 has 128 divisors (see below), whose sum is σ = 30820608. Its totient is φ = 2304000.

The previous prime is 10403249. The next prime is 10403251. The reversal of 10403250 is 5230401.

It is an interprime number because it is at equal distance from previous prime (10403249) and next prime (10403251).

It is a super-2 number, since 2×10403250² = 216455221125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10403251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 107202 + ... + 107298.

It is an arithmetic number, because the mean of its divisors is an integer number (240786).

Almost surely, 2^10403250 is an apocalyptic number.

10403250 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 10403250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15410304).

10403250 is an abundant number, since it is smaller than the sum of its proper divisors (20417358).

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

10403250 is a wasteful number, since it uses less digits than its factorization.

10403250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 10403250 is about 3225.4069510683. The cubic root of 10403250 is about 218.3013115959.

Adding to 10403250 its reverse (5230401), we get a palindrome (15633651).

The spelling of 10403250 in words is "ten million, four hundred three thousand, two hundred fifty".