405248201 has 4 divisors (see below), whose sum is σ = 422867712. Its totient is φ = 387628692.

The previous prime is 405248189. The next prime is 405248203. The reversal of 405248201 is 102842504.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 405248201 - 2¹⁴ = 405231817 is a prime.

It is a super-2 number, since 2×405248201² = 328452208827472802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405248203) 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 in 3 ways as a sum of consecutive naturals, for example, 8809721 + ... + 8809766.

It is an arithmetic number, because the mean of its divisors is an integer number (105716928).

Almost surely, 2^405248201 is an apocalyptic number.

It is an amenable number.

405248201 is a deficient number, since it is larger than the sum of its proper divisors (17619511).

405248201 is a wasteful number, since it uses less digits than its factorization.

405248201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17619510.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 405248201 is about 20130.7774564223. Note that the first 3 decimals coincide. The cubic root of 405248201 is about 740.0147312626.

The spelling of 405248201 in words is "four hundred five million, two hundred forty-eight thousand, two hundred one".