40120736 has 24 divisors (see below), whose sum is σ = 79341444. Its totient is φ = 19970560.

The previous prime is 40120733. The next prime is 40120741. The reversal of 40120736 is 63702104.

It can be written as a sum of positive squares in 2 ways, for example, as 37699600 + 2421136 = 6140^2 + 1556^2 .

It is not an unprimeable number, because it can be changed into a prime (40120733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4766 + ... + 10146.

Almost surely, 2^40120736 is an apocalyptic number.

It is an amenable number.

40120736 is a deficient number, since it is larger than the sum of its proper divisors (39220708).

40120736 is a wasteful number, since it uses less digits than its factorization.

40120736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5624 (or 5616 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 40120736 is about 6334.0931474048. The cubic root of 40120736 is about 342.3389364714.

The spelling of 40120736 in words is "forty million, one hundred twenty thousand, seven hundred thirty-six".