1040440442 has 8 divisors (see below), whose sum is σ = 1561571616. Its totient is φ = 519916572.

The previous prime is 1040440417. The next prime is 1040440447. The reversal of 1040440442 is 2440440401.

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

It is not an unprimeable number, because it can be changed into a prime (1040440447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147518 + ... + 154409.

It is an arithmetic number, because the mean of its divisors is an integer number (195196452).

Almost surely, 2^1040440442 is an apocalyptic number.

1040440442 is a deficient number, since it is larger than the sum of its proper divisors (521131174).

1040440442 is a wasteful number, since it uses less digits than its factorization.

1040440442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303652.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1040440442 is about 32255.8590336701. The cubic root of 1040440442 is about 1013.3024086198.

Adding to 1040440442 its reverse (2440440401), we get a palindrome (3480880843).

The spelling of 1040440442 in words is "one billion, forty million, four hundred forty thousand, four hundred forty-two".