401343533 has 2 divisors, whose sum is σ = 401343534. Its totient is φ = 401343532.

The previous prime is 401343487. The next prime is 401343539. The reversal of 401343533 is 335343104.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375313129 + 26030404 = 19373^2 + 5102^2 .

It is a cyclic number.

It is not a de Polignac number, because 401343533 - 2⁸ = 401343277 is a prime.

It is a super-2 number, since 2×401343533² = 322153262961844178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401343539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200671766 + 200671767.

It is an arithmetic number, because the mean of its divisors is an integer number (200671767).

Almost surely, 2^401343533 is an apocalyptic number.

It is an amenable number.

401343533 is a deficient number, since it is larger than the sum of its proper divisors (1).

401343533 is an equidigital number, since it uses as much as digits as its factorization.

401343533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 401343533 is about 20033.5601678783. The cubic root of 401343533 is about 737.6303141553.

Adding to 401343533 its reverse (335343104), we get a palindrome (736686637).

The spelling of 401343533 in words is "four hundred one million, three hundred forty-three thousand, five hundred thirty-three".