1144551400 has 24 divisors (see below), whose sum is σ = 2661082470. Its totient is φ = 457820480.

The previous prime is 1144551361. The next prime is 1144551487. The reversal of 1144551400 is 41554411.

It can be written as a sum of positive squares in 3 ways, for example, as 988850916 + 155700484 = 31446^2 + 12478^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2861179 + ... + 2861578.

Almost surely, 2^1144551400 is an apocalyptic number.

1144551400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144551400 is an abundant number, since it is smaller than the sum of its proper divisors (1516531070).

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

1144551400 is a wasteful number, since it uses less digits than its factorization.

1144551400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722773 (or 5722764 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1144551400 is about 33831.2193099805. The cubic root of 1144551400 is about 1046.0323124555.

The spelling of 1144551400 in words is "one billion, one hundred forty-four million, five hundred fifty-one thousand, four hundred".