1440746928 has 60 divisors (see below), whose sum is σ = 4063890688. Its totient is φ = 476461440.

The previous prime is 1440746927. The next prime is 1440746939. The reversal of 1440746928 is 8296470441.

It is not an unprimeable number, because it can be changed into a prime (1440746927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21103 + ... + 57678.

Almost surely, 2^1440746928 is an apocalyptic number.

1440746928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1440746928 is an abundant number, since it is smaller than the sum of its proper divisors (2623143760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1440746928 is a wasteful number, since it uses less digits than its factorization.

1440746928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78922 (or 78913 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 1440746928 is about 37957.1722866707. The cubic root of 1440746928 is about 1129.4384470642.

The spelling of 1440746928 in words is "one billion, four hundred forty million, seven hundred forty-six thousand, nine hundred twenty-eight".