70042278 has 32 divisors (see below), whose sum is σ = 149520384. Its totient is φ = 21796992.

The previous prime is 70042249. The next prime is 70042327. The reversal of 70042278 is 87224007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10251 + ... + 15657.

It is an arithmetic number, because the mean of its divisors is an integer number (4672512).

Almost surely, 2^70042278 is an apocalyptic number.

70042278 is an abundant number, since it is smaller than the sum of its proper divisors (79478106).

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

70042278 is a wasteful number, since it uses less digits than its factorization.

70042278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5556.

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

The square root of 70042278 is about 8369.1264777156. The cubic root of 70042278 is about 412.2114845680.

The spelling of 70042278 in words is "seventy million, forty-two thousand, two hundred seventy-eight".