42023172 has 24 divisors (see below), whose sum is σ = 98168896. Its totient is φ = 13991328.

The previous prime is 42023161. The next prime is 42023183. The reversal of 42023172 is 27132024.

It is an interprime number because it is at equal distance from previous prime (42023161) and next prime (42023183).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13113 + ... + 15999.

Almost surely, 2^42023172 is an apocalyptic number.

It is an amenable number.

42023172 is an abundant number, since it is smaller than the sum of its proper divisors (56145724).

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

42023172 is a wasteful number, since it uses less digits than its factorization.

42023172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107 (or 4105 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 42023172 is about 6482.5282105055. The cubic root of 42023172 is about 347.6665785212. Note that the first 3 decimals are identical.

Adding to 42023172 its reverse (27132024), we get a palindrome (69155196).

It can be divided in two parts, 42023 and 172, that added together give a triangular number (42195 = T₂₉₀).

The spelling of 42023172 in words is "forty-two million, twenty-three thousand, one hundred seventy-two".