105440293 has 8 divisors (see below), whose sum is σ = 121226112. Its totient is φ = 89835216.

The previous prime is 105440281. The next prime is 105440311. The reversal of 105440293 is 392044501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105440293 - 2¹³ = 105432101 is a prime.

It is a super-2 number, since 2×105440293² = 22235310775851698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105440243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 43930 + ... + 46267.

It is an arithmetic number, because the mean of its divisors is an integer number (15153264).

Almost surely, 2^105440293 is an apocalyptic number.

It is an amenable number.

105440293 is a deficient number, since it is larger than the sum of its proper divisors (15785819).

105440293 is an equidigital number, since it uses as much as digits as its factorization.

105440293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90371.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 105440293 is about 10268.4123894592. The cubic root of 105440293 is about 472.4278967643.

Adding to 105440293 its reverse (392044501), we get a palindrome (497484794).

The spelling of 105440293 in words is "one hundred five million, four hundred forty thousand, two hundred ninety-three".