40027857 has 8 divisors (see below), whose sum is σ = 53524800. Its totient is φ = 26608080.

The previous prime is 40027853. The next prime is 40027861. The reversal of 40027857 is 75872004.

It is an interprime number because it is at equal distance from previous prime (40027853) and next prime (40027861).

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

It is not a de Polignac number, because 40027857 - 2² = 40027853 is a prime.

It is a super-3 number, since 3×40027857³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40027853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18069 + ... + 20162.

It is an arithmetic number, because the mean of its divisors is an integer number (6690600).

Almost surely, 2^40027857 is an apocalyptic number.

It is an amenable number.

40027857 is a deficient number, since it is larger than the sum of its proper divisors (13496943).

40027857 is a wasteful number, since it uses less digits than its factorization.

40027857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38583.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 40027857 is about 6326.7572262574. The cubic root of 40027857 is about 342.0745622457.

The spelling of 40027857 in words is "forty million, twenty-seven thousand, eight hundred fifty-seven".