40065850 has 48 divisors (see below), whose sum is σ = 82244736. Its totient is φ = 14400000.

The previous prime is 40065841. The next prime is 40065859. The reversal of 40065850 is 5856004.

It is an interprime number because it is at equal distance from previous prime (40065841) and next prime (40065859).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40065859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52975 + ... + 53725.

It is an arithmetic number, because the mean of its divisors is an integer number (1713432).

Almost surely, 2^40065850 is an apocalyptic number.

40065850 is an abundant number, since it is smaller than the sum of its proper divisors (42178886).

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

40065850 is a wasteful number, since it uses less digits than its factorization.

40065850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871 (or 866 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 40065850 is about 6329.7590791435. The cubic root of 40065850 is about 342.1827563057.

The spelling of 40065850 in words is "forty million, sixty-five thousand, eight hundred fifty".