42578126 has 16 divisors (see below), whose sum is σ = 68154000. Its totient is φ = 19891008.

The previous prime is 42578113. The next prime is 42578143. The reversal of 42578126 is 62187524.

It is a congruent number.

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, 4901 + ... + 10448.

It is an arithmetic number, because the mean of its divisors is an integer number (4259625).

Almost surely, 2^42578126 is an apocalyptic number.

42578126 is a deficient number, since it is larger than the sum of its proper divisors (25575874).

42578126 is a wasteful number, since it uses less digits than its factorization.

42578126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15443.

The product of its digits is 26880, while the sum is 35.

The square root of 42578126 is about 6525.1916446952. The cubic root of 42578126 is about 349.1903078897.

The spelling of 42578126 in words is "forty-two million, five hundred seventy-eight thousand, one hundred twenty-six".