403242213 has 8 divisors (see below), whose sum is σ = 586534176. Its totient is φ = 244389200.

The previous prime is 403242211. The next prime is 403242221. The reversal of 403242213 is 312242304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 403242213 - 2¹ = 403242211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 403242213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403242211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6109698 + ... + 6109763.

It is an arithmetic number, because the mean of its divisors is an integer number (73316772).

Almost surely, 2^403242213 is an apocalyptic number.

It is an amenable number.

403242213 is a deficient number, since it is larger than the sum of its proper divisors (183291963).

403242213 is a wasteful number, since it uses less digits than its factorization.

403242213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12219475.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 403242213 is about 20080.8917381674. The cubic root of 403242213 is about 738.7916809634.

Adding to 403242213 its reverse (312242304), we get a palindrome (715484517).

Subtracting from 403242213 its reverse (312242304), we obtain a palindrome (90999909).

The spelling of 403242213 in words is "four hundred three million, two hundred forty-two thousand, two hundred thirteen".