40985157 has 8 divisors (see below), whose sum is σ = 54725760. Its totient is φ = 27284000.

The previous prime is 40985143. The next prime is 40985167. The reversal of 40985157 is 75158904.

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

It is a cyclic number.

It is not a de Polignac number, because 40985157 - 2¹¹ = 40983109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40985137) 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, 7344 + ... + 11657.

It is an arithmetic number, because the mean of its divisors is an integer number (6840720).

Almost surely, 2^40985157 is an apocalyptic number.

It is an amenable number.

40985157 is a deficient number, since it is larger than the sum of its proper divisors (13740603).

40985157 is a wasteful number, since it uses less digits than its factorization.

40985157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19723.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 40985157 is about 6401.9650889395. The cubic root of 40985157 is about 344.7801077244.

The spelling of 40985157 in words is "forty million, nine hundred eighty-five thousand, one hundred fifty-seven".