40305504 has 48 divisors (see below), whose sum is σ = 112030128. Its totient is φ = 12644352.

The previous prime is 40305481. The next prime is 40305523. The reversal of 40305504 is 40550304.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10717 + ... + 13980.

It is an arithmetic number, because the mean of its divisors is an integer number (2333961).

Almost surely, 2^40305504 is an apocalyptic number.

It is an amenable number.

40305504 is an abundant number, since it is smaller than the sum of its proper divisors (71724624).

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

40305504 is a wasteful number, since it uses less digits than its factorization.

40305504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24727 (or 24719 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 40305504 is about 6348.6615912332. The cubic root of 40305504 is about 342.8636562255.

Adding to 40305504 its reverse (40550304), we get a palindrome (80855808).

The spelling of 40305504 in words is "forty million, three hundred five thousand, five hundred four".