40304406 has 8 divisors (see below), whose sum is σ = 80608824. Its totient is φ = 13434800.

The previous prime is 40304401. The next prime is 40304413. The reversal of 40304406 is 60440304.

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

40304406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40304401) 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, 3358695 + ... + 3358706.

It is an arithmetic number, because the mean of its divisors is an integer number (10076103).

Almost surely, 2^40304406 is an apocalyptic number.

40304406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40304406 is a wasteful number, since it uses less digits than its factorization.

40304406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6717406.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 40304406 is about 6348.5751157248. The cubic root of 40304406 is about 342.8605427738.

The spelling of 40304406 in words is "forty million, three hundred four thousand, four hundred six".