1440856027 has 4 divisors (see below), whose sum is σ = 1551691120. Its totient is φ = 1330020936.

The previous prime is 1440856007. The next prime is 1440856073. The reversal of 1440856027 is 7206580441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7206580441 = 14533 ⋅495877.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440856027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440856007) 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, 55417527 + ... + 55417552.

It is an arithmetic number, because the mean of its divisors is an integer number (387922780).

Almost surely, 2^1440856027 is an apocalyptic number.

1440856027 is a deficient number, since it is larger than the sum of its proper divisors (110835093).

1440856027 is a wasteful number, since it uses less digits than its factorization.

1440856027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110835092.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 1440856027 is about 37958.6093923368. The cubic root of 1440856027 is about 1129.4669548455.

The spelling of 1440856027 in words is "one billion, four hundred forty million, eight hundred fifty-six thousand, twenty-seven".