1040205442 has 8 divisors (see below), whose sum is σ = 1560521232. Its totient is φ = 520031700.

The previous prime is 1040205427. The next prime is 1040205473. The reversal of 1040205442 is 2445020401.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14784 + ... + 47947.

It is an arithmetic number, because the mean of its divisors is an integer number (195065154).

Almost surely, 2^1040205442 is an apocalyptic number.

1040205442 is a deficient number, since it is larger than the sum of its proper divisors (520315790).

1040205442 is an equidigital number, since it uses as much as digits as its factorization.

1040205442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71024.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1040205442 is about 32252.2160788991. The cubic root of 1040205442 is about 1013.2261127272.

Adding to 1040205442 its reverse (2445020401), we get a palindrome (3485225843).

The spelling of 1040205442 in words is "one billion, forty million, two hundred five thousand, four hundred forty-two".