1401012444444 has 96 divisors (see below), whose sum is σ = 3651728935680. Its totient is φ = 415459519488.

The previous prime is 1401012444439. The next prime is 1401012444467. The reversal of 1401012444444 is 4444442101041.

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, 1309102 + ... + 2125034.

It is an arithmetic number, because the mean of its divisors is an integer number (38038843080).

Almost surely, 2^{1401012444444} 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 1401012444444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1825864467840).

1401012444444 is an abundant number, since it is smaller than the sum of its proper divisors (2250716491236).

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

1401012444444 is a wasteful number, since it uses less digits than its factorization.

1401012444444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816419 (or 816417 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 33.

Adding to 1401012444444 its reverse (4444442101041), we get a palindrome (5845454545485).

The spelling of 1401012444444 in words is "one trillion, four hundred one billion, twelve million, four hundred forty-four thousand, four hundred forty-four".