10505390 has 16 divisors (see below), whose sum is σ = 21611232. Its totient is φ = 3601824.

The previous prime is 10505387. The next prime is 10505401. The reversal of 10505390 is 9350501.

It is a super-2 number, since 2×10505390² = 220726438104200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74969 + ... + 75108.

It is an arithmetic number, because the mean of its divisors is an integer number (1350702).

Almost surely, 2^10505390 is an apocalyptic number.

10505390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10505390 is an abundant number, since it is smaller than the sum of its proper divisors (11105842).

10505390 is a wasteful number, since it uses less digits than its factorization.

10505390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150091.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 10505390 is about 3241.2019375534. The cubic root of 10505390 is about 219.0134198041.

Adding to 10505390 its reverse (9350501), we get a palindrome (19855891).

The spelling of 10505390 in words is "ten million, five hundred five thousand, three hundred ninety".