1402011444 has 96 divisors (see below), whose sum is σ = 3500815360. Its totient is φ = 435456000.

The previous prime is 1402011439. The next prime is 1402011451. The reversal of 1402011444 is 4441102041.

It is a self number, because there is not a number n which added to its sum of digits gives 1402011444.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6644499 + ... + 6644709.

Almost surely, 2^1402011444 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 1402011444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1750407680).

1402011444 is an abundant number, since it is smaller than the sum of its proper divisors (2098803916).

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

1402011444 is a wasteful number, since it uses less digits than its factorization.

1402011444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1402011444 is about 37443.4432711523. The cubic root of 1402011444 is about 1119.2244428848.

Adding to 1402011444 its reverse (4441102041), we get a palindrome (5843113485).

The spelling of 1402011444 in words is "one billion, four hundred two million, eleven thousand, four hundred forty-four".