420062381 has 2 divisors, whose sum is σ = 420062382. Its totient is φ = 420062380.

The previous prime is 420062353. The next prime is 420062389. The reversal of 420062381 is 183260024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299809225 + 120253156 = 17315^2 + 10966^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420062381 is a prime.

It is a super-2 number, since 2×420062381² = 352904807862778322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420062381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420062389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210031190 + 210031191.

It is an arithmetic number, because the mean of its divisors is an integer number (210031191).

Almost surely, 2^420062381 is an apocalyptic number.

It is an amenable number.

420062381 is a deficient number, since it is larger than the sum of its proper divisors (1).

420062381 is an equidigital number, since it uses as much as digits as its factorization.

420062381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 420062381 is about 20495.4234159726. The cubic root of 420062381 is about 748.9243133426.

The spelling of 420062381 in words is "four hundred twenty million, sixty-two thousand, three hundred eighty-one".