408374249 has 4 divisors (see below), whose sum is σ = 408414864. Its totient is φ = 408333636.

The previous prime is 408374243. The next prime is 408374251. The reversal of 408374249 is 942473804.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 408374249 - 2¹² = 408370153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408374243) 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, 7154 + ... + 29460.

It is an arithmetic number, because the mean of its divisors is an integer number (102103716).

Almost surely, 2^408374249 is an apocalyptic number.

It is an amenable number.

408374249 is a deficient number, since it is larger than the sum of its proper divisors (40615).

408374249 is a wasteful number, since it uses less digits than its factorization.

408374249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40614.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 408374249 is about 20208.2717964699. The cubic root of 408374249 is about 741.9126616953.

The spelling of 408374249 in words is "four hundred eight million, three hundred seventy-four thousand, two hundred forty-nine".