105440331 has 16 divisors (see below), whose sum is σ = 145732608. Its totient is φ = 67740000.

The previous prime is 105440311. The next prime is 105440371. The reversal of 105440331 is 133044501.

It is not a de Polignac number, because 105440331 - 2⁹ = 105439819 is a prime.

It is a super-2 number, since 2×105440331² = 22235326802779122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105440298 and 105440307.

It is not an unprimeable number, because it can be changed into a prime (105440311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21085 + ... + 25601.

It is an arithmetic number, because the mean of its divisors is an integer number (9108288).

Almost surely, 2^105440331 is an apocalyptic number.

105440331 is a deficient number, since it is larger than the sum of its proper divisors (40292277).

105440331 is a wasteful number, since it uses less digits than its factorization.

105440331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4802.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 105440331 is about 10268.4142397938. The cubic root of 105440331 is about 472.4279535176.

Adding to 105440331 its reverse (133044501), we get a palindrome (238484832).

The spelling of 105440331 in words is "one hundred five million, four hundred forty thousand, three hundred thirty-one".