383885401 has 2 divisors, whose sum is σ = 383885402. Its totient is φ = 383885400.

The previous prime is 383885363. The next prime is 383885461. The reversal of 383885401 is 104588383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313325401 + 70560000 = 17701^2 + 8400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-383885401 is a prime.

It is a super-2 number, since 2×383885401² = 294736002201861602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (383885461) 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, 191942700 + 191942701.

It is an arithmetic number, because the mean of its divisors is an integer number (191942701).

Almost surely, 2^383885401 is an apocalyptic number.

It is an amenable number.

383885401 is a deficient number, since it is larger than the sum of its proper divisors (1).

383885401 is an equidigital number, since it uses as much as digits as its factorization.

383885401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 383885401 is about 19592.9936712081. The cubic root of 383885401 is about 726.7759243128.

The spelling of 383885401 in words is "three hundred eighty-three million, eight hundred eighty-five thousand, four hundred one".