1440410057 has 2 divisors, whose sum is σ = 1440410058. Its totient is φ = 1440410056.

The previous prime is 1440410021. The next prime is 1440410063. The reversal of 1440410057 is 7500140441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1270993801 + 169416256 = 35651^2 + 13016^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440410057 - 2¹⁸ = 1440147913 is a prime.

It is a super-2 number, since 2×1440410057² = 4149562264613486498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1440410557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720205028 + 720205029.

It is an arithmetic number, because the mean of its divisors is an integer number (720205029).

Almost surely, 2^1440410057 is an apocalyptic number.

It is an amenable number.

1440410057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440410057 is an equidigital number, since it uses as much as digits as its factorization.

1440410057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 1440410057 is about 37952.7345128121. The cubic root of 1440410057 is about 1129.3504129319.

Adding to 1440410057 its reverse (7500140441), we get a palindrome (8940550498).

The spelling of 1440410057 in words is "one billion, four hundred forty million, four hundred ten thousand, fifty-seven".