1440400041 has 6 divisors (see below), whose sum is σ = 2080577850. Its totient is φ = 960266688.

The previous prime is 1440400033. The next prime is 1440400061. The reversal of 1440400041 is 1400040441.

It can be written as a sum of positive squares in only one way, i.e., 888338025 + 552062016 = 29805^2 + 23496^2 .

It is not a de Polignac number, because 1440400041 - 2³ = 1440400033 is a prime.

It is a super-2 number, since 2×1440400041² = 4149504556225603362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1440399987 and 1440400023.

It is not an unprimeable number, because it can be changed into a prime (1440400061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80022216 + ... + 80022233.

It is an arithmetic number, because the mean of its divisors is an integer number (346762975).

Almost surely, 2^1440400041 is an apocalyptic number.

It is an amenable number.

1440400041 is a deficient number, since it is larger than the sum of its proper divisors (640177809).

1440400041 is a wasteful number, since it uses less digits than its factorization.

1440400041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160044455 (or 160044452 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1440400041 is about 37952.6025589814. The cubic root of 1440400041 is about 1129.3477952514.

Adding to 1440400041 its reverse (1400040441), we get a palindrome (2840440482).

The spelling of 1440400041 in words is "one billion, four hundred forty million, four hundred thousand, forty-one".