42210088 has 8 divisors (see below), whose sum is σ = 79143930. Its totient is φ = 21105040.

The previous prime is 42210071. The next prime is 42210137. The reversal of 42210088 is 88001224.

It can be written as a sum of positive squares in only one way, i.e., 37724164 + 4485924 = 6142^2 + 2118^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2638123 + ... + 2638138.

Almost surely, 2^42210088 is an apocalyptic number.

It is an amenable number.

42210088 is a deficient number, since it is larger than the sum of its proper divisors (36933842).

42210088 is a wasteful number, since it uses less digits than its factorization.

42210088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5276267 (or 5276263 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 42210088 is about 6496.9291207462. The cubic root of 42210088 is about 348.1812813371.

The spelling of 42210088 in words is "forty-two million, two hundred ten thousand, eighty-eight".