1122801840 has 60 divisors (see below), whose sum is σ = 3770745264. Its totient is φ = 299413632.

The previous prime is 1122801821. The next prime is 1122801893. The reversal of 1122801840 is 481082211.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 779004 + ... + 780443.

Almost surely, 2^1122801840 is an apocalyptic number.

1122801840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122801840 is an abundant number, since it is smaller than the sum of its proper divisors (2647943424).

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

1122801840 is a wasteful number, since it uses less digits than its factorization.

1122801840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559466 (or 1559457 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 1122801840 is about 33508.2354056432. The cubic root of 1122801840 is about 1039.3640836297.

The spelling of 1122801840 in words is "one billion, one hundred twenty-two million, eight hundred one thousand, eight hundred forty".