40655120 has 40 divisors (see below), whose sum is σ = 103118400. Its totient is φ = 14783360.

The previous prime is 40655107. The next prime is 40655123. The reversal of 40655120 is 2155604.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (40655123) 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, 22220 + ... + 23979.

It is an arithmetic number, because the mean of its divisors is an integer number (2577960).

Almost surely, 2^40655120 is an apocalyptic number.

40655120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40655120 is an abundant number, since it is smaller than the sum of its proper divisors (62463280).

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

40655120 is a wasteful number, since it uses less digits than its factorization.

40655120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46223 (or 46217 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 40655120 is about 6376.1367613940. The cubic root of 40655120 is about 343.8521538818.

The spelling of 40655120 in words is "forty million, six hundred fifty-five thousand, one hundred twenty".