422139140 has 12 divisors (see below), whose sum is σ = 886492236. Its totient is φ = 168855648.

The previous prime is 422139119. The next prime is 422139143. The reversal of 422139140 is 41931224.

It can be written as a sum of positive squares in 2 ways, for example, as 151339204 + 270799936 = 12302^2 + 16456^2 .

It is not an unprimeable number, because it can be changed into a prime (422139143) 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 3 ways as a sum of consecutive naturals, for example, 10553459 + ... + 10553498.

It is an arithmetic number, because the mean of its divisors is an integer number (73874353).

Almost surely, 2^422139140 is an apocalyptic number.

It is an amenable number.

422139140 is an abundant number, since it is smaller than the sum of its proper divisors (464353096).

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

422139140 is a wasteful number, since it uses less digits than its factorization.

422139140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21106966 (or 21106964 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 422139140 is about 20546.0249196773. The cubic root of 422139140 is about 750.1564947510.

The spelling of 422139140 in words is "four hundred twenty-two million, one hundred thirty-nine thousand, one hundred forty".