1142403402400 has 72 divisors (see below), whose sum is σ = 3003422510844. Its totient is φ = 421810483200.

The previous prime is 1142403402389. The next prime is 1142403402403. The reversal of 1142403402400 is 42043042411.

It can be written as a sum of positive squares in 6 ways, for example, as 46454043024 + 1095949359376 = 215532^2 + 1046876^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1142403402403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54912841 + ... + 54933640.

Almost surely, 2^{1142403402400} is an apocalyptic number.

1142403402400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142403402400 is an abundant number, since it is smaller than the sum of its proper divisors (1861019108444).

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

1142403402400 is a wasteful number, since it uses less digits than its factorization.

1142403402400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109846514 (or 109846501 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1142403402400 its reverse (42043042411), we get a palindrome (1184446444811).

The spelling of 1142403402400 in words is "one trillion, one hundred forty-two billion, four hundred three million, four hundred two thousand, four hundred".