40736320 has 28 divisors (see below), whose sum is σ = 97004124. Its totient is φ = 16294400.

The previous prime is 40736309. The next prime is 40736341. The reversal of 40736320 is 2363704.

It can be written as a sum of positive squares in 2 ways, for example, as 16451136 + 24285184 = 4056^2 + 4928^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 63331 + ... + 63970.

It is an arithmetic number, because the mean of its divisors is an integer number (3464433).

Almost surely, 2^40736320 is an apocalyptic number.

40736320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40736320 is an abundant number, since it is smaller than the sum of its proper divisors (56267804).

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

40736320 is a wasteful number, since it uses less digits than its factorization.

40736320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127318 (or 127308 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 40736320 is about 6382.5010771640. The cubic root of 40736320 is about 344.0809256156.

The spelling of 40736320 in words is "forty million, seven hundred thirty-six thousand, three hundred twenty".