408378345 has 32 divisors (see below), whose sum is σ = 676076544. Its totient is φ = 210278400.

The previous prime is 408378337. The next prime is 408378379. The reversal of 408378345 is 543873804.

It is not a de Polignac number, because 408378345 - 2³ = 408378337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 408378297 and 408378306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275005 + ... + 276485.

It is an arithmetic number, because the mean of its divisors is an integer number (21127392).

Almost surely, 2^408378345 is an apocalyptic number.

It is an amenable number.

408378345 is a deficient number, since it is larger than the sum of its proper divisors (267698199).

408378345 is a wasteful number, since it uses less digits than its factorization.

408378345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113.

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 408378345 is about 20208.3731408543. The cubic root of 408378345 is about 741.9151421521.

It can be divided in two parts, 4083 and 78345, that added together give a palindrome (82428).

The spelling of 408378345 in words is "four hundred eight million, three hundred seventy-eight thousand, three hundred forty-five".