42655910 has 16 divisors (see below), whose sum is σ = 83760912. Its totient is φ = 15511200.

The previous prime is 42655891. The next prime is 42655913. The reversal of 42655910 is 1955624.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42655913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193781 + ... + 194000.

It is an arithmetic number, because the mean of its divisors is an integer number (5235057).

Almost surely, 2^42655910 is an apocalyptic number.

42655910 is a deficient number, since it is larger than the sum of its proper divisors (41105002).

42655910 is a wasteful number, since it uses less digits than its factorization.

42655910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387799.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 42655910 is about 6531.1492097486. The cubic root of 42655910 is about 349.4028183831.

The spelling of 42655910 in words is "forty-two million, six hundred fifty-five thousand, nine hundred ten".