40999857 has 8 divisors (see below), whose sum is σ = 55060320. Its totient is φ = 27136320.

The previous prime is 40999843. The next prime is 40999921. The reversal of 40999857 is 75899904.

It is a happy number.

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

It is not a de Polignac number, because 40999857 - 2⁷ = 40999729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40999817) 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, 48744 + ... + 49577.

It is an arithmetic number, because the mean of its divisors is an integer number (6882540).

Almost surely, 2^40999857 is an apocalyptic number.

It is an amenable number.

40999857 is a deficient number, since it is larger than the sum of its proper divisors (14060463).

40999857 is a wasteful number, since it uses less digits than its factorization.

40999857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98463.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 40999857 is about 6403.1130709991. The cubic root of 40999857 is about 344.8213231475.

The spelling of 40999857 in words is "forty million, nine hundred ninety-nine thousand, eight hundred fifty-seven".