1440550111 has 16 divisors (see below), whose sum is σ = 1934166528. Its totient is φ = 1036159200.

The previous prime is 1440550109. The next prime is 1440550127. The reversal of 1440550111 is 1110550441.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1440550111 - 2¹ = 1440550109 is a prime.

It is a super-2 number, since 2×1440550111² = 4150369244604224642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440550171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718555 + ... + 720556.

It is an arithmetic number, because the mean of its divisors is an integer number (120885408).

Almost surely, 2^1440550111 is an apocalyptic number.

1440550111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1440550111 is a deficient number, since it is larger than the sum of its proper divisors (493616417).

1440550111 is a wasteful number, since it uses less digits than its factorization.

1440550111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439142.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1440550111 is about 37954.5795787544. The cubic root of 1440550111 is about 1129.3870147583.

It can be divided in two parts, 14405 and 50111, that added together give a square (64516 = 254²).

The spelling of 1440550111 in words is "one billion, four hundred forty million, five hundred fifty thousand, one hundred eleven".