401449589 has 2 divisors, whose sum is σ = 401449590. Its totient is φ = 401449588.

The previous prime is 401449501. The next prime is 401449619. The reversal of 401449589 is 985944104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210540100 + 190909489 = 14510^2 + 13817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401449589 is a prime.

It is a super-2 number, since 2×401449589² = 322323545016537842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401446589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200724794 + 200724795.

It is an arithmetic number, because the mean of its divisors is an integer number (200724795).

Almost surely, 2^401449589 is an apocalyptic number.

It is an amenable number.

401449589 is a deficient number, since it is larger than the sum of its proper divisors (1).

401449589 is an equidigital number, since it uses as much as digits as its factorization.

401449589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 401449589 is about 20036.2069514167. The cubic root of 401449589 is about 737.6952819650.

The spelling of 401449589 in words is "four hundred one million, four hundred forty-nine thousand, five hundred eighty-nine".