1440865011940 has 48 divisors (see below), whose sum is σ = 3107971927872. Its totient is φ = 560701132416.

The previous prime is 1440865011923. The next prime is 1440865011973. The reversal of 1440865011940 is 491105680441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6222927 + ... + 6450313.

It is an arithmetic number, because the mean of its divisors is an integer number (64749415164).

Almost surely, 2^{1440865011940} is an apocalyptic number.

1440865011940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1440865011940 is an abundant number, since it is smaller than the sum of its proper divisors (1667106915932).

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

1440865011940 is a wasteful number, since it uses less digits than its factorization.

1440865011940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235996 (or 235994 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 1440865011940 in words is "one trillion, four hundred forty billion, eight hundred sixty-five million, eleven thousand, nine hundred forty".