105503490 has 24 divisors (see below), whose sum is σ = 274309308. Its totient is φ = 28134240.

The previous prime is 105503449. The next prime is 105503491. The reversal of 105503490 is 94305501.

It can be written as a sum of positive squares in 2 ways, for example, as 103489929 + 2013561 = 10173^2 + 1419^2 .

It is a super-2 number, since 2×105503490² = 22261972804360200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105503491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 586041 + ... + 586220.

Almost surely, 2^105503490 is an apocalyptic number.

105503490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105503490 is an abundant number, since it is smaller than the sum of its proper divisors (168805818).

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

105503490 is a wasteful number, since it uses less digits than its factorization.

105503490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172274 (or 1172271 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 105503490 is about 10271.4891812239. The cubic root of 105503490 is about 472.5222631653.

Adding to 105503490 its reverse (94305501), we get a palindrome (199808991).

The spelling of 105503490 in words is "one hundred five million, five hundred three thousand, four hundred ninety".