1040143403 has 16 divisors (see below), whose sum is σ = 1162828800. Its totient is φ = 923905440.

The previous prime is 1040143399. The next prime is 1040143409. The reversal of 1040143403 is 3043410401.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1040143403 - 2² = 1040143399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040143409) 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, 64928 + ... + 79346.

It is an arithmetic number, because the mean of its divisors is an integer number (72676800).

Almost surely, 2^1040143403 is an apocalyptic number.

1040143403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1040143403 is a deficient number, since it is larger than the sum of its proper divisors (122685397).

1040143403 is a wasteful number, since it uses less digits than its factorization.

1040143403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14642.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1040143403 is about 32251.2542856863. The cubic root of 1040143403 is about 1013.2059690191.

Adding to 1040143403 its reverse (3043410401), we get a palindrome (4083553804).

The spelling of 1040143403 in words is "one billion, forty million, one hundred forty-three thousand, four hundred three".