70142878 has 8 divisors (see below), whose sum is σ = 113307768. Its totient is φ = 32373624.

The previous prime is 70142873. The next prime is 70142881. The reversal of 70142878 is 87824107.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70142873) 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, 1348876 + ... + 1348927.

It is an arithmetic number, because the mean of its divisors is an integer number (14163471).

Almost surely, 2^70142878 is an apocalyptic number.

70142878 is a deficient number, since it is larger than the sum of its proper divisors (43164890).

70142878 is a wasteful number, since it uses less digits than its factorization.

70142878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697818.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 70142878 is about 8375.1345063826. The cubic root of 70142878 is about 412.4087398971.

The spelling of 70142878 in words is "seventy million, one hundred forty-two thousand, eight hundred seventy-eight".