1078969642 has 16 divisors (see below), whose sum is σ = 1628625600. Its totient is φ = 536101632.

The previous prime is 1078969627. The next prime is 1078969649. The reversal of 1078969642 is 2469698701.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1078969642.

It is not an unprimeable number, because it can be changed into a prime (1078969649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509578 + ... + 511690.

It is an arithmetic number, because the mean of its divisors is an integer number (101789100).

Almost surely, 2^1078969642 is an apocalyptic number.

1078969642 is a deficient number, since it is larger than the sum of its proper divisors (549655958).

1078969642 is a wasteful number, since it uses less digits than its factorization.

1078969642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 1078969642 is about 32847.6733118192. The cubic root of 1078969642 is about 1025.6591887478.

The spelling of 1078969642 in words is "one billion, seventy-eight million, nine hundred sixty-nine thousand, six hundred forty-two".