40385458220 has 12 divisors (see below), whose sum is σ = 84809462304. Its totient is φ = 16154183280.

The previous prime is 40385458171. The next prime is 40385458237. The reversal of 40385458220 is 2285458304.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009636436 + ... + 1009636475.

It is an arithmetic number, because the mean of its divisors is an integer number (7067455192).

Almost surely, 2^40385458220 is an apocalyptic number.

It is an amenable number.

40385458220 is an abundant number, since it is smaller than the sum of its proper divisors (44424004084).

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

40385458220 is a wasteful number, since it uses less digits than its factorization.

40385458220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019272920 (or 2019272918 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 41.

The spelling of 40385458220 in words is "forty billion, three hundred eighty-five million, four hundred fifty-eight thousand, two hundred twenty".