40305804 has 96 divisors (see below), whose sum is σ = 118390272. Its totient is φ = 10368000.

The previous prime is 40305787. The next prime is 40305817. The reversal of 40305804 is 40850304.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167124 + ... + 167364.

It is an arithmetic number, because the mean of its divisors is an integer number (1233232).

Almost surely, 2^40305804 is an apocalyptic number.

40305804 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40305804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59195136).

40305804 is an abundant number, since it is smaller than the sum of its proper divisors (78084468).

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

40305804 is a wasteful number, since it uses less digits than its factorization.

40305804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 40305804 is about 6348.6852182164. The cubic root of 40305804 is about 342.8645068855.

The spelling of 40305804 in words is "forty million, three hundred five thousand, eight hundred four".