1440232101 has 48 divisors (see below), whose sum is σ = 2706462720. Its totient is φ = 715635360.

The previous prime is 1440232097. The next prime is 1440232103. The reversal of 1440232101 is 1012320441.

It is not a de Polignac number, because 1440232101 - 2² = 1440232097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440232103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29241 + ... + 61118.

It is an arithmetic number, because the mean of its divisors is an integer number (56384640).

Almost surely, 2^1440232101 is an apocalyptic number.

1440232101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1440232101 is a deficient number, since it is larger than the sum of its proper divisors (1266230619).

1440232101 is a wasteful number, since it uses less digits than its factorization.

1440232101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90406 (or 90403 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1440232101 is about 37950.3899979961. The cubic root of 1440232101 is about 1129.3039023432.

Adding to 1440232101 its reverse (1012320441), we get a palindrome (2452552542).

The spelling of 1440232101 in words is "one billion, four hundred forty million, two hundred thirty-two thousand, one hundred one".