1144401604 has 12 divisors (see below), whose sum is σ = 2004542764. Its totient is φ = 571675104.

The previous prime is 1144401571. The next prime is 1144401649. The reversal of 1144401604 is 4061044411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 863772100 + 280629504 = 29390^2 + 16752^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126507 + ... + 135250.

Almost surely, 2^1144401604 is an apocalyptic number.

It is an amenable number.

1144401604 is a deficient number, since it is larger than the sum of its proper divisors (860141160).

1144401604 is a wasteful number, since it uses less digits than its factorization.

1144401604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262854 (or 262852 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1144401604 is about 33829.0053652188. The cubic root of 1144401604 is about 1045.9866764411.

The spelling of 1144401604 in words is "one billion, one hundred forty-four million, four hundred one thousand, six hundred four".