1144423100 has 36 divisors (see below), whose sum is σ = 2484867000. Its totient is φ = 457498560.

The previous prime is 1144423097. The next prime is 1144423103. The reversal of 1144423100 is 13244411.

It is an interprime number because it is at equal distance from previous prime (1144423097) and next prime (1144423103).

It is a super-2 number, since 2×1144423100² = 2619408463627220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144423103) 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, 328166 + ... + 331634.

Almost surely, 2^1144423100 is an apocalyptic number.

1144423100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144423100 is an abundant number, since it is smaller than the sum of its proper divisors (1340443900).

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

1144423100 is a wasteful number, since it uses less digits than its factorization.

1144423100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782 (or 6775 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1144423100 is about 33829.3230792459. The cubic root of 1144423100 is about 1045.9932255373.

Adding to 1144423100 its reverse (13244411), we get a palindrome (1157667511).

Subtracting from 1144423100 its reverse (13244411), we obtain a square (1131178689 = 33633²).

The spelling of 1144423100 in words is "one billion, one hundred forty-four million, four hundred twenty-three thousand, one hundred".