42166270 has 16 divisors (see below), whose sum is σ = 77332320. Its totient is φ = 16548064.

The previous prime is 42166259. The next prime is 42166277. The reversal of 42166270 is 7266124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42166277) 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, 39250 + ... + 40309.

It is an arithmetic number, because the mean of its divisors is an integer number (4833270).

Almost surely, 2^42166270 is an apocalyptic number.

42166270 is a deficient number, since it is larger than the sum of its proper divisors (35166050).

42166270 is a wasteful number, since it uses less digits than its factorization.

42166270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79619.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 42166270 is about 6493.5560365642. The cubic root of 42166270 is about 348.0607580972.

It can be divided in two parts, 42166 and 270, that added together give a square (42436 = 206²).

The spelling of 42166270 in words is "forty-two million, one hundred sixty-six thousand, two hundred seventy".