40740540 has 48 divisors (see below), whose sum is σ = 116508672. Its totient is φ = 10632256.

The previous prime is 40740533. The next prime is 40740547. The reversal of 40740540 is 4504704.

It is an interprime number because it is at equal distance from previous prime (40740533) and next prime (40740547).

It is a self number, because there is not a number n which added to its sum of digits gives 40740540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40740547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4404 + ... + 10043.

It is an arithmetic number, because the mean of its divisors is an integer number (2427264).

Almost surely, 2^40740540 is an apocalyptic number.

It is an amenable number.

40740540 is an abundant number, since it is smaller than the sum of its proper divisors (75768132).

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

40740540 is a wasteful number, since it uses less digits than its factorization.

40740540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14506 (or 14504 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 40740540 is about 6382.8316600080. The cubic root of 40740540 is about 344.0928066706.

The spelling of 40740540 in words is "forty million, seven hundred forty thousand, five hundred forty".