40282257 has 8 divisors (see below), whose sum is σ = 54263776. Its totient is φ = 26577792.

The previous prime is 40282219. The next prime is 40282259. The reversal of 40282257 is 75228204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40282257 - 2¹⁶ = 40216721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40282259) 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 7 ways as a sum of consecutive naturals, for example, 68923 + ... + 69504.

It is an arithmetic number, because the mean of its divisors is an integer number (6782972).

Almost surely, 2^40282257 is an apocalyptic number.

It is an amenable number.

40282257 is a deficient number, since it is larger than the sum of its proper divisors (13981519).

40282257 is a wasteful number, since it uses less digits than its factorization.

40282257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138527.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 40282257 is about 6346.8304688246. The cubic root of 40282257 is about 342.7977257403.

The spelling of 40282257 in words is "forty million, two hundred eighty-two thousand, two hundred fifty-seven".