1440652043 has 2 divisors, whose sum is σ = 1440652044. Its totient is φ = 1440652042.

The previous prime is 1440652033. The next prime is 1440652069. The reversal of 1440652043 is 3402560441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1440652043 - 2¹⁰ = 1440651019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1440651997 and 1440652015.

It is not a weakly prime, because it can be changed into another prime (1440652033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720326021 + 720326022.

It is an arithmetic number, because the mean of its divisors is an integer number (720326022).

Almost surely, 2^1440652043 is an apocalyptic number.

1440652043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440652043 is an equidigital number, since it uses as much as digits as its factorization.

1440652043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 1440652043 is about 37955.9223705603. The cubic root of 1440652043 is about 1129.4136522586.

The spelling of 1440652043 in words is "one billion, four hundred forty million, six hundred fifty-two thousand, forty-three".