1040449541 has 2 divisors, whose sum is σ = 1040449542. Its totient is φ = 1040449540.

The previous prime is 1040449523. The next prime is 1040449561. The reversal of 1040449541 is 1459440401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1040385025 + 64516 = 32255^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040449541 - 2⁶ = 1040449477 is a prime.

It is a super-2 number, since 2×1040449541² = 2165070494734221362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1040449498 and 1040449507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040449561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520224770 + 520224771.

It is an arithmetic number, because the mean of its divisors is an integer number (520224771).

Almost surely, 2^1040449541 is an apocalyptic number.

It is an amenable number.

1040449541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040449541 is an equidigital number, since it uses as much as digits as its factorization.

1040449541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1040449541 is about 32256.0000775050. Note that the first 4 decimals coincide. The cubic root of 1040449541 is about 1013.3053625008.

Adding to 1040449541 its reverse (1459440401), we get a palindrome (2499889942).

The spelling of 1040449541 in words is "one billion, forty million, four hundred forty-nine thousand, five hundred forty-one".