70857042 has 32 divisors (see below), whose sum is σ = 149584320. Its totient is φ = 22314240.

The previous prime is 70857013. The next prime is 70857067. The reversal of 70857042 is 24075807.

It is a junction number, because it is equal to n+sod(n) for n = 70856994 and 70857012.

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, 58798 + ... + 59990.

It is an arithmetic number, because the mean of its divisors is an integer number (4674510).

Almost surely, 2^70857042 is an apocalyptic number.

70857042 is an abundant number, since it is smaller than the sum of its proper divisors (78727278).

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

70857042 is a wasteful number, since it uses less digits than its factorization.

70857042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 70857042 is about 8417.6625021439. The cubic root of 70857042 is about 413.8036712928.

The spelling of 70857042 in words is "seventy million, eight hundred fifty-seven thousand, forty-two".