42261656 has 8 divisors (see below), whose sum is σ = 79240620. Its totient is φ = 21130824.

The previous prime is 42261631. The next prime is 42261673. The reversal of 42261656 is 65616224.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2641346 + ... + 2641361.

Almost surely, 2^42261656 is an apocalyptic number.

It is an amenable number.

42261656 is a deficient number, since it is larger than the sum of its proper divisors (36978964).

42261656 is a wasteful number, since it uses less digits than its factorization.

42261656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282713 (or 5282709 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 42261656 is about 6500.8965535532. The cubic root of 42261656 is about 348.3230144808.

The spelling of 42261656 in words is "forty-two million, two hundred sixty-one thousand, six hundred fifty-six".