1401355742424 has 128 divisors (see below), whose sum is σ = 3840578426880. Its totient is φ = 422577792000.

The previous prime is 1401355742341. The next prime is 1401355742497. The reversal of 1401355742424 is 4242475531041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120004074 + ... + 120015750.

It is an arithmetic number, because the mean of its divisors is an integer number (30004518960).

Almost surely, 2^{1401355742424} 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 1401355742424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1920289213440).

1401355742424 is an abundant number, since it is smaller than the sum of its proper divisors (2439222684456).

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

1401355742424 is a wasteful number, since it uses less digits than its factorization.

1401355742424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13881 (or 13877 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 42.

The spelling of 1401355742424 in words is "one trillion, four hundred one billion, three hundred fifty-five million, seven hundred forty-two thousand, four hundred twenty-four".