402068041 has 2 divisors, whose sum is σ = 402068042. Its totient is φ = 402068040.

The previous prime is 402068039. The next prime is 402068087. The reversal of 402068041 is 140860204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375235641 + 26832400 = 19371^2 + 5180^2 .

It is a cyclic number.

It is not a de Polignac number, because 402068041 - 2¹ = 402068039 is a prime.

Together with 402068039, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 402067997 and 402068015.

It is not a weakly prime, because it can be changed into another prime (402068021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201034020 + 201034021.

It is an arithmetic number, because the mean of its divisors is an integer number (201034021).

Almost surely, 2^402068041 is an apocalyptic number.

It is an amenable number.

402068041 is a deficient number, since it is larger than the sum of its proper divisors (1).

402068041 is an equidigital number, since it uses as much as digits as its factorization.

402068041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 402068041 is about 20051.6343722900. The cubic root of 402068041 is about 738.0739057113.

The spelling of 402068041 in words is "four hundred two million, sixty-eight thousand, forty-one".