1040109406 has 16 divisors (see below), whose sum is σ = 1784211840. Its totient is φ = 445469400.

The previous prime is 1040109401. The next prime is 1040109439. The reversal of 1040109406 is 6049010401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040109401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420 + ... + 45631.

It is an arithmetic number, because the mean of its divisors is an integer number (111513240).

Almost surely, 2^1040109406 is an apocalyptic number.

1040109406 is a deficient number, since it is larger than the sum of its proper divisors (744102434).

1040109406 is a wasteful number, since it uses less digits than its factorization.

1040109406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48639.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1040109406 is about 32250.7272166071. The cubic root of 1040109406 is about 1013.1949300481.

Adding to 1040109406 its reverse (6049010401), we get a palindrome (7089119807).

The spelling of 1040109406 in words is "one billion, forty million, one hundred nine thousand, four hundred six".