405624241 has 8 divisors (see below), whose sum is σ = 451914624. Its totient is φ = 360903120.

The previous prime is 405624227. The next prime is 405624253. The reversal of 405624241 is 142426504.

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

It is a cyclic number.

It is not a de Polignac number, because 405624241 - 2⁵ = 405624209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405624841) 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, 391770 + ... + 392803.

It is an arithmetic number, because the mean of its divisors is an integer number (56489328).

Almost surely, 2^405624241 is an apocalyptic number.

It is an amenable number.

405624241 is a deficient number, since it is larger than the sum of its proper divisors (46290383).

405624241 is a wasteful number, since it uses less digits than its factorization.

405624241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784631.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 405624241 is about 20140.1152181411. The cubic root of 405624241 is about 740.2435532622.

The spelling of 405624241 in words is "four hundred five million, six hundred twenty-four thousand, two hundred forty-one".