40449105 has 16 divisors (see below), whose sum is σ = 71909760. Its totient is φ = 21572784.

The previous prime is 40449091. The next prime is 40449109. The reversal of 40449105 is 50194404.

It is not a de Polignac number, because 40449105 - 2⁴ = 40449089 is a prime.

It is a super-2 number, since 2×40449105² = 3272260190602050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40449109) 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 15 ways as a sum of consecutive naturals, for example, 149677 + ... + 149946.

It is an arithmetic number, because the mean of its divisors is an integer number (4494360).

Almost surely, 2^40449105 is an apocalyptic number.

40449105 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40449105 is a deficient number, since it is larger than the sum of its proper divisors (31460655).

40449105 is a wasteful number, since it uses less digits than its factorization.

40449105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299637 (or 299631 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 40449105 is about 6359.9610847866. The cubic root of 40449105 is about 343.2703600426.

The spelling of 40449105 in words is "forty million, four hundred forty-nine thousand, one hundred five".