1040420461 has 2 divisors, whose sum is σ = 1040420462. Its totient is φ = 1040420460.

The previous prime is 1040420431. The next prime is 1040420467. The reversal of 1040420461 is 1640240401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 746983561 + 293436900 = 27331^2 + 17130^2 .

It is an emirp because it is prime and its reverse (1640240401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1040420461 - 2⁵ = 1040420429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040420467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520210230 + 520210231.

It is an arithmetic number, because the mean of its divisors is an integer number (520210231).

Almost surely, 2^1040420461 is an apocalyptic number.

It is an amenable number.

1040420461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040420461 is an equidigital number, since it uses as much as digits as its factorization.

1040420461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1040420461 is about 32255.5493055071. The cubic root of 1040420461 is about 1013.2959219678.

Adding to 1040420461 its reverse (1640240401), we get a palindrome (2680660862).

The spelling of 1040420461 in words is "one billion, forty million, four hundred twenty thousand, four hundred sixty-one".