1403344989 has 12 divisors (see below), whose sum is σ = 2027411100. Its totient is φ = 935398464.

The previous prime is 1403344979. The next prime is 1403345011. The reversal of 1403344989 is 9894433041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 711128889 + 692216100 = 26667^2 + 26310^2 .

It is not a de Polignac number, because 1403344989 - 2⁹ = 1403344477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403344909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62347 + ... + 81815.

It is an arithmetic number, because the mean of its divisors is an integer number (168950925).

Almost surely, 2^1403344989 is an apocalyptic number.

It is an amenable number.

1403344989 is a deficient number, since it is larger than the sum of its proper divisors (624066111).

1403344989 is a wasteful number, since it uses less digits than its factorization.

1403344989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27484 (or 27481 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1403344989 is about 37461.2464955452. The cubic root of 1403344989 is about 1119.5791863499.

The spelling of 1403344989 in words is "one billion, four hundred three million, three hundred forty-four thousand, nine hundred eighty-nine".