1122445400 has 48 divisors (see below), whose sum is σ = 2763204840. Its totient is φ = 422566400.

The previous prime is 1122445369. The next prime is 1122445409. The reversal of 1122445400 is 45442211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122445409) 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 11 ways as a sum of consecutive naturals, for example, 161666 + ... + 168465.

Almost surely, 2^1122445400 is an apocalyptic number.

1122445400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122445400 is an abundant number, since it is smaller than the sum of its proper divisors (1640759440).

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

1122445400 is a wasteful number, since it uses less digits than its factorization.

1122445400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330164 (or 330155 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1122445400 is about 33502.9162909738. The cubic root of 1122445400 is about 1039.2540879236.

Adding to 1122445400 its reverse (45442211), we get a palindrome (1167887611).

The spelling of 1122445400 in words is "one billion, one hundred twenty-two million, four hundred forty-five thousand, four hundred".