1401642004356 has 336 divisors, whose sum is σ = 4254098002560. Its totient is φ = 399177538560.

The previous prime is 1401642004327. The next prime is 1401642004393. The reversal of 1401642004356 is 6534002461041.

1401642004356 is a `hidden beast` number, since 1 + 4 + 0 + 1 + 642 + 0 + 0 + 4 + 3 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1401642004356.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 501121950 + ... + 501124746.

It is an arithmetic number, because the mean of its divisors is an integer number (12661005960).

Almost surely, 2^{1401642004356} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401642004356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2127049001280).

1401642004356 is an abundant number, since it is smaller than the sum of its proper divisors (2852455998204).

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

1401642004356 is a wasteful number, since it uses less digits than its factorization.

1401642004356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766 (or 3749 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 1401642004356 its reverse (6534002461041), we get a palindrome (7935644465397).

The spelling of 1401642004356 in words is "one trillion, four hundred one billion, six hundred forty-two million, four thousand, three hundred fifty-six".