1120400140 has 24 divisors (see below), whose sum is σ = 2428739712. Its totient is φ = 433703040.

The previous prime is 1120400087. The next prime is 1120400167. The reversal of 1120400140 is 410040211.

It is a self number, because there is not a number n which added to its sum of digits gives 1120400140.

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, 902929 + ... + 904168.

It is an arithmetic number, because the mean of its divisors is an integer number (101197488).

Almost surely, 2^1120400140 is an apocalyptic number.

1120400140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120400140 is an abundant number, since it is smaller than the sum of its proper divisors (1308339572).

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

1120400140 is a wasteful number, since it uses less digits than its factorization.

1120400140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807137 (or 1807135 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1120400140 is about 33472.3787621973. The cubic root of 1120400140 is about 1038.6224797276.

Adding to 1120400140 its reverse (410040211), we get a palindrome (1530440351).

The spelling of 1120400140 in words is "one billion, one hundred twenty million, four hundred thousand, one hundred forty".