1403240144 has 20 divisors (see below), whose sum is σ = 2721552000. Its totient is φ = 700904160.

The previous prime is 1403240101. The next prime is 1403240149. The reversal of 1403240144 is 4410423041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403240149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28394 + ... + 60105.

It is an arithmetic number, because the mean of its divisors is an integer number (136077600).

Almost surely, 2^1403240144 is an apocalyptic number.

It is an amenable number.

1403240144 is a deficient number, since it is larger than the sum of its proper divisors (1318311856).

1403240144 is an equidigital number, since it uses as much as digits as its factorization.

1403240144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89498 (or 89492 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1403240144 is about 37459.8470899175. The cubic root of 1403240144 is about 1119.5513041104.

Adding to 1403240144 its reverse (4410423041), we get a palindrome (5813663185).

The spelling of 1403240144 in words is "one billion, four hundred three million, two hundred forty thousand, one hundred forty-four".