40740320 has 24 divisors (see below), whose sum is σ = 96249384. Its totient is φ = 16296064.

The previous prime is 40740317. The next prime is 40740361. The reversal of 40740320 is 2304704.

It is a happy number.

40740320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40740292 and 40740301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127154 + ... + 127473.

It is an arithmetic number, because the mean of its divisors is an integer number (4010391).

Almost surely, 2^40740320 is an apocalyptic number.

40740320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40740320 is an abundant number, since it is smaller than the sum of its proper divisors (55509064).

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

40740320 is a wasteful number, since it uses less digits than its factorization.

40740320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254642 (or 254634 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 40740320 is about 6382.8144262543. The cubic root of 40740320 is about 344.0921872993.

The spelling of 40740320 in words is "forty million, seven hundred forty thousand, three hundred twenty".