406252241 has 4 divisors (see below), whose sum is σ = 419357184. Its totient is φ = 393147300.

The previous prime is 406252237. The next prime is 406252277. The reversal of 406252241 is 142252604.

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 406252241 - 2² = 406252237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 406252241.

It is not an unprimeable number, because it can be changed into a prime (406252201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6552425 + ... + 6552486.

It is an arithmetic number, because the mean of its divisors is an integer number (104839296).

Almost surely, 2^406252241 is an apocalyptic number.

It is an amenable number.

406252241 is a deficient number, since it is larger than the sum of its proper divisors (13104943).

406252241 is a wasteful number, since it uses less digits than its factorization.

406252241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13104942.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 406252241 is about 20155.6999630378. The cubic root of 406252241 is about 740.6253789360.

The spelling of 406252241 in words is "four hundred six million, two hundred fifty-two thousand, two hundred forty-one".