1144040403 has 16 divisors (see below), whose sum is σ = 1666970496. Its totient is φ = 692144640.

The previous prime is 1144040371. The next prime is 1144040419. The reversal of 1144040403 is 3040404411.

It is not a de Polignac number, because 1144040403 - 2⁵ = 1144040371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1144040403.

It is not an unprimeable number, because it can be changed into a prime (1144040203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11001 + ... + 49082.

It is an arithmetic number, because the mean of its divisors is an integer number (104185656).

Almost surely, 2^1144040403 is an apocalyptic number.

1144040403 is a deficient number, since it is larger than the sum of its proper divisors (522930093).

1144040403 is a wasteful number, since it uses less digits than its factorization.

1144040403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60674.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1144040403 is about 33823.6663151705. Note that the first 3 decimals coincide. The cubic root of 1144040403 is about 1045.8766185768.

Adding to 1144040403 its reverse (3040404411), we get a palindrome (4184444814).

The spelling of 1144040403 in words is "one billion, one hundred forty-four million, forty thousand, four hundred three".