40691850 has 24 divisors (see below), whose sum is σ = 100916160. Its totient is φ = 10851120.

The previous prime is 40691839. The next prime is 40691851. The reversal of 40691850 is 5819604.

It is not an unprimeable number, because it can be changed into a prime (40691851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135490 + ... + 135789.

It is an arithmetic number, because the mean of its divisors is an integer number (4204840).

Almost surely, 2^40691850 is an apocalyptic number.

40691850 is an abundant number, since it is smaller than the sum of its proper divisors (60224310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40691850 is a wasteful number, since it uses less digits than its factorization.

40691850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271294 (or 271289 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 40691850 is about 6379.0163818570. The cubic root of 40691850 is about 343.9556741607.

The spelling of 40691850 in words is "forty million, six hundred ninety-one thousand, eight hundred fifty".