1404140243 has 8 divisors (see below), whose sum is σ = 1569150576. Its totient is φ = 1245356800.

The previous prime is 1404140237. The next prime is 1404140267. The reversal of 1404140243 is 3420414041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1404140243 - 2²⁰ = 1403091667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1404140203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1556246 + ... + 1557147.

It is an arithmetic number, because the mean of its divisors is an integer number (196143822).

Almost surely, 2^1404140243 is an apocalyptic number.

1404140243 is a deficient number, since it is larger than the sum of its proper divisors (165010333).

1404140243 is a wasteful number, since it uses less digits than its factorization.

1404140243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113445.

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

The square root of 1404140243 is about 37471.8593480494. The cubic root of 1404140243 is about 1119.7906291772.

Adding to 1404140243 its reverse (3420414041), we get a palindrome (4824554284).

The spelling of 1404140243 in words is "one billion, four hundred four million, one hundred forty thousand, two hundred forty-three".