42077858 has 8 divisors (see below), whose sum is σ = 63159852. Its totient is φ = 21024576.

The previous prime is 42077851. The next prime is 42077863. The reversal of 42077858 is 85877024.

It can be written as a sum of positive squares in 2 ways, for example, as 39476089 + 2601769 = 6283^2 + 1613^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42077858² = 3541092267736328, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42077851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3035 + ... + 9662.

Almost surely, 2^42077858 is an apocalyptic number.

42077858 is a deficient number, since it is larger than the sum of its proper divisors (21081994).

42077858 is a wasteful number, since it uses less digits than its factorization.

42077858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14356.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 42077858 is about 6486.7447922668. The cubic root of 42077858 is about 347.8173227606.

The spelling of 42077858 in words is "forty-two million, seventy-seven thousand, eight hundred fifty-eight".