40087293 has 8 divisors (see below), whose sum is σ = 54182208. Its totient is φ = 26358624.

The previous prime is 40087277. The next prime is 40087297. The reversal of 40087293 is 39278004.

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

It is not a de Polignac number, because 40087293 - 2⁴ = 40087277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40087297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91305 + ... + 91742.

It is an arithmetic number, because the mean of its divisors is an integer number (6772776).

Almost surely, 2^40087293 is an apocalyptic number.

It is an amenable number.

40087293 is a deficient number, since it is larger than the sum of its proper divisors (14094915).

40087293 is a wasteful number, since it uses less digits than its factorization.

40087293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183123.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 40087293 is about 6331.4526769139. The cubic root of 40087293 is about 342.2437901309.

The spelling of 40087293 in words is "forty million, eighty-seven thousand, two hundred ninety-three".