42028077 has 16 divisors (see below), whose sum is σ = 68969600. Its totient is φ = 22168512.

The previous prime is 42028043. The next prime is 42028087. The reversal of 42028077 is 77082024.

It is not a de Polignac number, because 42028077 - 2⁶ = 42028013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42028087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76702 + ... + 77247.

It is an arithmetic number, because the mean of its divisors is an integer number (4310600).

Almost surely, 2^42028077 is an apocalyptic number.

It is an amenable number.

42028077 is a deficient number, since it is larger than the sum of its proper divisors (26941523).

42028077 is a wasteful number, since it uses less digits than its factorization.

42028077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153972.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 42028077 is about 6482.9065240832. The cubic root of 42028077 is about 347.6801046954.

The spelling of 42028077 in words is "forty-two million, twenty-eight thousand, seventy-seven".