1440040181950 has 24 divisors (see below), whose sum is σ = 2682128933208. Its totient is φ = 575230224480.

The previous prime is 1440040181933. The next prime is 1440040181969. The reversal of 1440040181950 is 591810400441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19609192 + ... + 19682491.

It is an arithmetic number, because the mean of its divisors is an integer number (111755372217).

Almost surely, 2^{1440040181950} is an apocalyptic number.

1440040181950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1440040181950 is a deficient number, since it is larger than the sum of its proper divisors (1242088751258).

1440040181950 is a wasteful number, since it uses less digits than its factorization.

1440040181950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39292428 (or 39292423 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 1440040181950 in words is "one trillion, four hundred forty billion, forty million, one hundred eighty-one thousand, nine hundred fifty".