1402231420240 has 120 divisors (see below), whose sum is σ = 3816621146952. Its totient is φ = 477702650880.

The previous prime is 1402231420199. The next prime is 1402231420253. The reversal of 1402231420240 is 420241322041.

It can be written as a sum of positive squares in 4 ways, for example, as 245092324624 + 1157139095616 = 495068^2 + 1075704^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 523771 + ... + 1754650.

Almost surely, 2^{1402231420240} is an apocalyptic number.

1402231420240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402231420240 is an abundant number, since it is smaller than the sum of its proper divisors (2414389726712).

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

1402231420240 is a wasteful number, since it uses less digits than its factorization.

1402231420240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278605 (or 2278592 counting only the distinct ones).

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

Adding to 1402231420240 its reverse (420241322041), we get a palindrome (1822472742281).

The spelling of 1402231420240 in words is "one trillion, four hundred two billion, two hundred thirty-one million, four hundred twenty thousand, two hundred forty".