1440400144200 has 96 divisors (see below), whose sum is σ = 4467402460800. Its totient is φ = 383920725760.

The previous prime is 1440400144159. The next prime is 1440400144201. The reversal of 1440400144200 is 24410040441.

It is a happy number.

It is a super-2 number, since 2×1440400144200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1440400144201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 661249 + ... + 1821551.

It is an arithmetic number, because the mean of its divisors is an integer number (46535442300).

Almost surely, 2^{1440400144200} is an apocalyptic number.

1440400144200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1440400144200 is an abundant number, since it is smaller than the sum of its proper divisors (3027002316600).

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

1440400144200 is a wasteful number, since it uses less digits than its factorization.

1440400144200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162391 (or 1162382 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 1440400144200 its reverse (24410040441), we get a palindrome (1464810184641).

The spelling of 1440400144200 in words is "one trillion, four hundred forty billion, four hundred million, one hundred forty-four thousand, two hundred".