42158277 has 18 divisors (see below), whose sum is σ = 70838118. Its totient is φ = 24090192.

The previous prime is 42158251. The next prime is 42158293. The reversal of 42158277 is 77285124.

42158277 is a `hidden beast` number, since 4 + 2 + 1 + 582 + 77 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22524516 + 19633761 = 4746^2 + 4431^2 .

It is not a de Polignac number, because 42158277 - 2¹¹ = 42156229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42158297) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 47358 + ... + 48239.

It is an arithmetic number, because the mean of its divisors is an integer number (3935451).

Almost surely, 2^42158277 is an apocalyptic number.

It is an amenable number.

42158277 is a deficient number, since it is larger than the sum of its proper divisors (28679841).

42158277 is a wasteful number, since it uses less digits than its factorization.

42158277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95617 (or 95607 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 42158277 is about 6492.9405510909. The cubic root of 42158277 is about 348.0387640132.

The spelling of 42158277 in words is "forty-two million, one hundred fifty-eight thousand, two hundred seventy-seven".