1122443440 has 40 divisors (see below), whose sum is σ = 2611082880. Its totient is φ = 448736256.

The previous prime is 1122443431. The next prime is 1122443471. The reversal of 1122443440 is 443442211.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266632 + ... + 270808.

It is an arithmetic number, because the mean of its divisors is an integer number (65277072).

Almost surely, 2^1122443440 is an apocalyptic number.

1122443440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122443440 is an abundant number, since it is smaller than the sum of its proper divisors (1488639440).

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

1122443440 is a wasteful number, since it uses less digits than its factorization.

1122443440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7549 (or 7543 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1122443440 is about 33502.8870397761. The cubic root of 1122443440 is about 1039.2534830124.

Adding to 1122443440 its reverse (443442211), we get a palindrome (1565885651).

The spelling of 1122443440 in words is "one billion, one hundred twenty-two million, four hundred forty-three thousand, four hundred forty".