1401424402420 has 24 divisors (see below), whose sum is σ = 3363418566144. Its totient is φ = 480488366496.

The previous prime is 1401424402409. The next prime is 1401424402447. The reversal of 1401424402420 is 242044241041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5005087012 + ... + 5005087291.

It is an arithmetic number, because the mean of its divisors is an integer number (140142440256).

Almost surely, 2^{1401424402420} is an apocalyptic number.

1401424402420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401424402420 is an abundant number, since it is smaller than the sum of its proper divisors (1961994163724).

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

1401424402420 is a wasteful number, since it uses less digits than its factorization.

1401424402420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010174319 (or 10010174317 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 1401424402420 its reverse (242044241041), we get a palindrome (1643468643461).

The spelling of 1401424402420 in words is "one trillion, four hundred one billion, four hundred twenty-four million, four hundred two thousand, four hundred twenty".