40287248 has 20 divisors (see below), whose sum is σ = 78471168. Its totient is φ = 20036640.

The previous prime is 40287241. The next prime is 40287271. The reversal of 40287248 is 84278204.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40287241) 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 3 ways as a sum of consecutive naturals, for example, 3536 + ... + 9647.

Almost surely, 2^40287248 is an apocalyptic number.

It is an amenable number.

40287248 is a deficient number, since it is larger than the sum of its proper divisors (38183920).

40287248 is a wasteful number, since it uses less digits than its factorization.

40287248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13382 (or 13376 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 40287248 is about 6347.2236450278. The cubic root of 40287248 is about 342.8118827822.

The spelling of 40287248 in words is "forty million, two hundred eighty-seven thousand, two hundred forty-eight".