42230655 has 12 divisors (see below), whose sum is σ = 73199880. Its totient is φ = 22522992.

The previous prime is 42230603. The next prime is 42230659. The reversal of 42230655 is 55603224.

42230655 is a `hidden beast` number, since 4 + 2 + 2 + 3 + 0 + 655 = 666.

It is not a de Polignac number, because 42230655 - 2⁷ = 42230527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42230659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 469185 + ... + 469274.

It is an arithmetic number, because the mean of its divisors is an integer number (6099990).

Almost surely, 2^42230655 is an apocalyptic number.

42230655 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42230655 is a deficient number, since it is larger than the sum of its proper divisors (30969225).

42230655 is a wasteful number, since it uses less digits than its factorization.

42230655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938470 (or 938467 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 42230655 is about 6498.5117527015. The cubic root of 42230655 is about 348.2378229680.

Subtracting from 42230655 its product of nonzero digits (7200), we obtain a triangular number (42223455 = T₉₁₈₉).

Adding to 42230655 its reverse (55603224), we get a palindrome (97833879).

The spelling of 42230655 in words is "forty-two million, two hundred thirty thousand, six hundred fifty-five".