42028479 has 6 divisors (see below), whose sum is σ = 60707816. Its totient is φ = 28018980.

The previous prime is 42028463. The next prime is 42028499. The reversal of 42028479 is 97482024.

It is not a de Polignac number, because 42028479 - 2⁴ = 42028463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42028499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2334907 + ... + 2334924.

Almost surely, 2^42028479 is an apocalyptic number.

42028479 is a deficient number, since it is larger than the sum of its proper divisors (18679337).

42028479 is a wasteful number, since it uses less digits than its factorization.

42028479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669837 (or 4669834 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 42028479 is about 6482.9375286208. The cubic root of 42028479 is about 347.6812132159.

The spelling of 42028479 in words is "forty-two million, twenty-eight thousand, four hundred seventy-nine".