42278106 has 16 divisors (see below), whose sum is σ = 91060704. Its totient is φ = 13008624.

The previous prime is 42278053. The next prime is 42278111. The reversal of 42278106 is 60187224.

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, 270936 + ... + 271091.

It is an arithmetic number, because the mean of its divisors is an integer number (5691294).

Almost surely, 2^42278106 is an apocalyptic number.

42278106 is an abundant number, since it is smaller than the sum of its proper divisors (48782598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42278106 is a wasteful number, since it uses less digits than its factorization.

42278106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542045.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 42278106 is about 6502.1616405623. The cubic root of 42278106 is about 348.3682025690.

The spelling of 42278106 in words is "forty-two million, two hundred seventy-eight thousand, one hundred six".