1440037 has 2 divisors, whose sum is σ = 1440038. Its totient is φ = 1440036.

The previous prime is 1440017. The next prime is 1440079. The reversal of 1440037 is 7300441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1069156 + 370881 = 1034^2 + 609^2 .

It is an emirp because it is prime and its reverse (7300441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1440037 - 2⁷ = 1439909 is a prime.

It is a super-2 number, since 2×1440037² = 4147413122738, which contains 22 as substring.

It is a Chen prime.

1440037 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1439996 and 1440023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720018 + 720019.

It is an arithmetic number, because the mean of its divisors is an integer number (720019).

2^1440037 is an apocalyptic number.

It is an amenable number.

1440037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440037 is an equidigital number, since it uses as much as digits as its factorization.

1440037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1440037 is about 1200.0154165676. The cubic root of 1440037 is about 112.9252906334.

Adding to 1440037 its reverse (7300441), we get a palindrome (8740478).

The spelling of 1440037 in words is "one million, four hundred forty thousand, thirty-seven".