1440713471 has 4 divisors (see below), whose sum is σ = 1440795192. Its totient is φ = 1440631752.

The previous prime is 1440713459. The next prime is 1440713489. The reversal of 1440713471 is 1743170441.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1440713471 - 2¹⁴ = 1440697087 is a prime.

It is a super-3 number, since 3×1440713471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440713401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261 + ... + 53726.

It is an arithmetic number, because the mean of its divisors is an integer number (360198798).

Almost surely, 2^1440713471 is an apocalyptic number.

1440713471 is a deficient number, since it is larger than the sum of its proper divisors (81721).

1440713471 is an equidigital number, since it uses as much as digits as its factorization.

1440713471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81720.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 1440713471 is about 37956.7315637161. The cubic root of 1440713471 is about 1129.4297043965.

The spelling of 1440713471 in words is "one billion, four hundred forty million, seven hundred thirteen thousand, four hundred seventy-one".