402443301461 has 2 divisors, whose sum is σ = 402443301462. Its totient is φ = 402443301460.

The previous prime is 402443301437. The next prime is 402443301479. The reversal of 402443301461 is 164103344204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313481291236 + 88962010225 = 559894^2 + 298265^2 .

It is a cyclic number.

It is not a de Polignac number, because 402443301461 - 2¹⁴ = 402443285077 is a prime.

It is a super-2 number, since 2×402443301461² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402443303461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201221650730 + 201221650731.

It is an arithmetic number, because the mean of its divisors is an integer number (201221650731).

Almost surely, 2^402443301461 is an apocalyptic number.

It is an amenable number.

402443301461 is a deficient number, since it is larger than the sum of its proper divisors (1).

402443301461 is an equidigital number, since it uses as much as digits as its factorization.

402443301461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 402443301461 its reverse (164103344204), we get a palindrome (566546645665).

The spelling of 402443301461 in words is "four hundred two billion, four hundred forty-three million, three hundred one thousand, four hundred sixty-one".