70886442 has 32 divisors (see below), whose sum is σ = 155669184. Its totient is φ = 21340800.

The previous prime is 70886423. The next prime is 70886449. The reversal of 70886442 is 24468807.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 70886442.

It is not an unprimeable number, because it can be changed into a prime (70886449) by changing a digit.

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, 6942 + ... + 13782.

It is an arithmetic number, because the mean of its divisors is an integer number (4864662).

Almost surely, 2^70886442 is an apocalyptic number.

70886442 is an abundant number, since it is smaller than the sum of its proper divisors (84782742).

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

70886442 is a wasteful number, since it uses less digits than its factorization.

70886442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7014.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 70886442 is about 8419.4086490679. The cubic root of 70886442 is about 413.8608951780.

It can be divided in two parts, 7088 and 6442, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 70886442 in words is "seventy million, eight hundred eighty-six thousand, four hundred forty-two".