40855128 has 32 divisors (see below), whose sum is σ = 102375360. Its totient is φ = 13586720.

The previous prime is 40855127. The next prime is 40855159. The reversal of 40855128 is 82155804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40855121) 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, 10051 + ... + 13517.

It is an arithmetic number, because the mean of its divisors is an integer number (3199230).

Almost surely, 2^40855128 is an apocalyptic number.

It is an amenable number.

40855128 is an abundant number, since it is smaller than the sum of its proper divisors (61520232).

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

40855128 is a wasteful number, since it uses less digits than its factorization.

40855128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967 (or 3963 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 40855128 is about 6391.8016239555. The cubic root of 40855128 is about 344.4151064232.

The spelling of 40855128 in words is "forty million, eight hundred fifty-five thousand, one hundred twenty-eight".