40786304 has 64 divisors (see below), whose sum is σ = 88650240. Its totient is φ = 18579456.

The previous prime is 40786301. The next prime is 40786327. The reversal of 40786304 is 40368704.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40786301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211232 + ... + 211424.

It is an arithmetic number, because the mean of its divisors is an integer number (1385160).

Almost surely, 2^40786304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40786304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44325120).

40786304 is an abundant number, since it is smaller than the sum of its proper divisors (47863936).

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

40786304 is a wasteful number, since it uses less digits than its factorization.

40786304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 40786304 is about 6386.4155830951. The cubic root of 40786304 is about 344.2215987013.

The spelling of 40786304 in words is "forty million, seven hundred eighty-six thousand, three hundred four".