40406308 has 12 divisors (see below), whose sum is σ = 73785600. Its totient is φ = 19324712.

The previous prime is 40406281. The next prime is 40406321. The reversal of 40406308 is 80360404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219508 + ... + 219691.

It is an arithmetic number, because the mean of its divisors is an integer number (6148800).

Almost surely, 2^40406308 is an apocalyptic number.

It is an amenable number.

40406308 is a deficient number, since it is larger than the sum of its proper divisors (33379292).

40406308 is a wasteful number, since it uses less digits than its factorization.

40406308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439226 (or 439224 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 40406308 is about 6356.5956297377. The cubic root of 40406308 is about 343.1492520817.

The spelling of 40406308 in words is "forty million, four hundred six thousand, three hundred eight".