1103442978 has 32 divisors (see below), whose sum is σ = 2431363392. Its totient is φ = 331064000.

The previous prime is 1103442931. The next prime is 1103442979. The reversal of 1103442978 is 8792443011.

It is not an unprimeable number, because it can be changed into a prime (1103442979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76101 + ... + 89432.

It is an arithmetic number, because the mean of its divisors is an integer number (75980106).

Almost surely, 2^1103442978 is an apocalyptic number.

1103442978 is an abundant number, since it is smaller than the sum of its proper divisors (1327920414).

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

1103442978 is a wasteful number, since it uses less digits than its factorization.

1103442978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165650.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1103442978 is about 33218.1121980163. The cubic root of 1103442978 is about 1033.3559991097.

Adding to 1103442978 its reverse (8792443011), we get a palindrome (9895885989).

The spelling of 1103442978 in words is "one billion, one hundred three million, four hundred forty-two thousand, nine hundred seventy-eight".