105440450 has 12 divisors (see below), whose sum is σ = 196119330. Its totient is φ = 42176160.

The previous prime is 105440407. The next prime is 105440509. The reversal of 105440450 is 54044501.

It can be written as a sum of positive squares in 3 ways, for example, as 40589641 + 64850809 = 6371^2 + 8053^2 .

It is a super-2 number, since 2×105440450² = 22235376992405000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1054355 + ... + 1054454.

Almost surely, 2^105440450 is an apocalyptic number.

105440450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105440450 is a deficient number, since it is larger than the sum of its proper divisors (90678880).

105440450 is a wasteful number, since it uses less digits than its factorization.

105440450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108821 (or 2108816 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 105440450 is about 10268.4200342604. The cubic root of 105440450 is about 472.4281312450.

Adding to 105440450 its reverse (54044501), we get a palindrome (159484951).

The spelling of 105440450 in words is "one hundred five million, four hundred forty thousand, four hundred fifty".