408740946 has 16 divisors (see below), whose sum is σ = 817701024. Its totient is φ = 136210464.

The previous prime is 408740933. The next prime is 408740947. The reversal of 408740946 is 649047804.

It is a junction number, because it is equal to n+sod(n) for n = 408740898 and 408740907.

It is not an unprimeable number, because it can be changed into a prime (408740947) 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, 24846 + ... + 37878.

It is an arithmetic number, because the mean of its divisors is an integer number (51106314).

Almost surely, 2^408740946 is an apocalyptic number.

408740946 is an abundant number, since it is smaller than the sum of its proper divisors (408960078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

408740946 is a wasteful number, since it uses less digits than its factorization.

408740946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18265.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 408740946 is about 20217.3427037284. The cubic root of 408740946 is about 742.1346604770.

The spelling of 408740946 in words is "four hundred eight million, seven hundred forty thousand, nine hundred forty-six".