105440250 has 32 divisors (see below), whose sum is σ = 263180736. Its totient is φ = 28117200.

The previous prime is 105440249. The next prime is 105440281. The reversal of 105440250 is 52044501.

It is a super-2 number, since 2×105440250² = 22235292640125000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69544 + ... + 71043.

It is an arithmetic number, because the mean of its divisors is an integer number (8224398).

Almost surely, 2^105440250 is an apocalyptic number.

105440250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105440250 is an abundant number, since it is smaller than the sum of its proper divisors (157740486).

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

105440250 is a wasteful number, since it uses less digits than its factorization.

105440250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140607 (or 140597 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 105440250 is about 10268.4102956592. The cubic root of 105440250 is about 472.4278325434.

Adding to 105440250 its reverse (52044501), we get a palindrome (157484751).

The spelling of 105440250 in words is "one hundred five million, four hundred forty thousand, two hundred fifty".