408034891 has 8 divisors (see below), whose sum is σ = 451773504. Its totient is φ = 365403720.

The previous prime is 408034877. The next prime is 408034897. The reversal of 408034891 is 198430804.

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

It is not a de Polignac number, because 408034891 - 2²¹ = 405937739 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 408034891.

It is not an unprimeable number, because it can be changed into a prime (408034897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276085 + ... + 277558.

It is an arithmetic number, because the mean of its divisors is an integer number (56471688).

Almost surely, 2^408034891 is an apocalyptic number.

408034891 is a deficient number, since it is larger than the sum of its proper divisors (43738613).

408034891 is a wasteful number, since it uses less digits than its factorization.

408034891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553721.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 408034891 is about 20199.8735392081. The cubic root of 408034891 is about 741.7070955419.

The spelling of 408034891 in words is "four hundred eight million, thirty-four thousand, eight hundred ninety-one".