1401200444 has 12 divisors (see below), whose sum is σ = 2802400944. Its totient is φ = 600514464.

The previous prime is 1401200443. The next prime is 1401200447. The reversal of 1401200444 is 4440021041.

It is a happy number.

1401200444 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401200443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25021409 + ... + 25021464.

It is an arithmetic number, because the mean of its divisors is an integer number (233533412).

Almost surely, 2^1401200444 is an apocalyptic number.

1401200444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1401200444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1401200444 is a wasteful number, since it uses less digits than its factorization.

1401200444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50042884 (or 50042882 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1401200444 is about 37432.6120381680. The cubic root of 1401200444 is about 1119.0085944092.

Adding to 1401200444 its reverse (4440021041), we get a palindrome (5841221485).

The spelling of 1401200444 in words is "one billion, four hundred one million, two hundred thousand, four hundred forty-four".