401258381 has 2 divisors, whose sum is σ = 401258382. Its totient is φ = 401258380.

The previous prime is 401258353. The next prime is 401258419. The reversal of 401258381 is 183852104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267486025 + 133772356 = 16355^2 + 11566^2 .

It is a cyclic number.

It is not a de Polignac number, because 401258381 - 2¹⁰ = 401257357 is a prime.

It is a super-2 number, since 2×401258381² = 322016576645482322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401258281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200629190 + 200629191.

It is an arithmetic number, because the mean of its divisors is an integer number (200629191).

Almost surely, 2^401258381 is an apocalyptic number.

It is an amenable number.

401258381 is a deficient number, since it is larger than the sum of its proper divisors (1).

401258381 is an equidigital number, since it uses as much as digits as its factorization.

401258381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 401258381 is about 20031.4348213002. The cubic root of 401258381 is about 737.5781434387.

The spelling of 401258381 in words is "four hundred one million, two hundred fifty-eight thousand, three hundred eighty-one".