422138827 has 8 divisors (see below), whose sum is σ = 484752960. Its totient is φ = 363564360.

The previous prime is 422138767. The next prime is 422138833. The reversal of 422138827 is 728831224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 422138827 - 2⁷ = 422138699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422138887) 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, 1009693 + ... + 1010110.

It is an arithmetic number, because the mean of its divisors is an integer number (60594120).

Almost surely, 2^422138827 is an apocalyptic number.

422138827 is a deficient number, since it is larger than the sum of its proper divisors (62614133).

422138827 is a wasteful number, since it uses less digits than its factorization.

422138827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019833.

The product of its digits is 43008, while the sum is 37.

The square root of 422138827 is about 20546.0173026307. The cubic root of 422138827 is about 750.1563093468.

It can be divided in two parts, 42213 and 8827, that added together give a triangular number (51040 = T₃₁₉).

The spelling of 422138827 in words is "four hundred twenty-two million, one hundred thirty-eight thousand, eight hundred twenty-seven".