70222578 has 16 divisors (see below), whose sum is σ = 140982336. Its totient is φ = 23318000.

The previous prime is 70222561. The next prime is 70222583. The reversal of 70222578 is 87522207.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20673 + ... + 23828.

It is an arithmetic number, because the mean of its divisors is an integer number (8811396).

Almost surely, 2^70222578 is an apocalyptic number.

70222578 is an abundant number, since it is smaller than the sum of its proper divisors (70759758).

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

70222578 is a wasteful number, since it uses less digits than its factorization.

70222578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44769.

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

The square root of 70222578 is about 8379.8912880777. The cubic root of 70222578 is about 412.5648808873.

The spelling of 70222578 in words is "seventy million, two hundred twenty-two thousand, five hundred seventy-eight".