1040494939 has 8 divisors (see below), whose sum is σ = 1135319040. Its totient is φ = 945709800.

The previous prime is 1040494937. The next prime is 1040494963. The reversal of 1040494939 is 9394940401.

It is a happy number.

1040494939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1040494939 - 2¹ = 1040494937 is a prime.

It is a super-2 number, since 2×1040494939² = 2165259436169227442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040494895 and 1040494904.

It is not an unprimeable number, because it can be changed into a prime (1040494937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97342 + ... + 107500.

It is an arithmetic number, because the mean of its divisors is an integer number (141914880).

Almost surely, 2^1040494939 is an apocalyptic number.

1040494939 is a deficient number, since it is larger than the sum of its proper divisors (94824101).

1040494939 is a wasteful number, since it uses less digits than its factorization.

1040494939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19481.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 1040494939 is about 32256.7037838648. The cubic root of 1040494939 is about 1013.3201001585.

The spelling of 1040494939 in words is "one billion, forty million, four hundred ninety-four thousand, nine hundred thirty-nine".