402036461 has 2 divisors, whose sum is σ = 402036462. Its totient is φ = 402036460.

The previous prime is 402036457. The next prime is 402036463. The reversal of 402036461 is 164630204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367297225 + 34739236 = 19165^2 + 5894^2 .

It is a cyclic number.

It is not a de Polignac number, because 402036461 - 2² = 402036457 is a prime.

Together with 402036463, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402036461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402036463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201018230 + 201018231.

It is an arithmetic number, because the mean of its divisors is an integer number (201018231).

Almost surely, 2^402036461 is an apocalyptic number.

It is an amenable number.

402036461 is a deficient number, since it is larger than the sum of its proper divisors (1).

402036461 is an equidigital number, since it uses as much as digits as its factorization.

402036461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 402036461 is about 20050.8468898448. The cubic root of 402036461 is about 738.0545814661.

Adding to 402036461 its reverse (164630204), we get a palindrome (566666665).

It can be divided in two parts, 40203 and 6461, that added together give a palindrome (46664).

The spelling of 402036461 in words is "four hundred two million, thirty-six thousand, four hundred sixty-one".