10503390 has 32 divisors (see below), whose sum is σ = 26536320. Its totient is φ = 2653344.

The previous prime is 10503377. The next prime is 10503397. The reversal of 10503390 is 9330501.

It is a super-2 number, since 2×10503390² = 220642402984200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10503397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8644 + ... + 9783.

It is an arithmetic number, because the mean of its divisors is an integer number (829260).

Almost surely, 2^10503390 is an apocalyptic number.

10503390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10503390 is an abundant number, since it is smaller than the sum of its proper divisors (16032930).

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

10503390 is a wasteful number, since it uses less digits than its factorization.

10503390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18456.

The product of its (nonzero) digits is 405, while the sum is 21.

The square root of 10503390 is about 3240.8933953464. The cubic root of 10503390 is about 218.9995204426. Note that the first 3 decimals are identical.

Adding to 10503390 its reverse (9330501), we get a palindrome (19833891).

Subtracting from 10503390 its reverse (9330501), we obtain a square (1172889 = 1083²).

The spelling of 10503390 in words is "ten million, five hundred three thousand, three hundred ninety".