1440422413 has 8 divisors (see below), whose sum is σ = 1456401528. Its totient is φ = 1424500224.

The previous prime is 1440422411. The next prime is 1440422419. The reversal of 1440422413 is 3142240441.

It can be written as a sum of positive squares in 4 ways, for example, as 530012484 + 910409929 = 23022^2 + 30173^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1440422413 - 2¹ = 1440422411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440422411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37695 + ... + 65587.

It is an arithmetic number, because the mean of its divisors is an integer number (182050191).

Almost surely, 2^1440422413 is an apocalyptic number.

It is an amenable number.

1440422413 is a deficient number, since it is larger than the sum of its proper divisors (15979115).

1440422413 is a wasteful number, since it uses less digits than its factorization.

1440422413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28463.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1440422413 is about 37952.8972938826. The cubic root of 1440422413 is about 1129.3536421544.

Adding to 1440422413 its reverse (3142240441), we get a palindrome (4582662854).

The spelling of 1440422413 in words is "one billion, four hundred forty million, four hundred twenty-two thousand, four hundred thirteen".