1040012442 has 48 divisors (see below), whose sum is σ = 2664080640. Its totient is φ = 286898976.

The previous prime is 1040012419. The next prime is 1040012497. The reversal of 1040012442 is 2442100401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138658 + ... + 145965.

It is an arithmetic number, because the mean of its divisors is an integer number (55501680).

Almost surely, 2^1040012442 is an apocalyptic number.

1040012442 is an abundant number, since it is smaller than the sum of its proper divisors (1624068198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1040012442 is a wasteful number, since it uses less digits than its factorization.

1040012442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284667 (or 284664 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1040012442 is about 32249.2238976382. The cubic root of 1040012442 is about 1013.1634441019.

Adding to 1040012442 its reverse (2442100401), we get a palindrome (3482112843).

The spelling of 1040012442 in words is "one billion, forty million, twelve thousand, four hundred forty-two".