408242241 has 32 divisors (see below), whose sum is σ = 664227840. Its totient is φ = 245754000.

The previous prime is 408242221. The next prime is 408242273. The reversal of 408242241 is 142242804.

It is not a de Polignac number, because 408242241 - 2⁵ = 408242209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (408242221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40296 + ... + 49398.

It is an arithmetic number, because the mean of its divisors is an integer number (20757120).

Almost surely, 2^408242241 is an apocalyptic number.

It is an amenable number.

408242241 is a deficient number, since it is larger than the sum of its proper divisors (255985599).

408242241 is a wasteful number, since it uses less digits than its factorization.

408242241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9274 (or 9268 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 408242241 is about 20205.0053452109. The cubic root of 408242241 is about 741.8327113705.

The spelling of 408242241 in words is "four hundred eight million, two hundred forty-two thousand, two hundred forty-one".