70222518 has 32 divisors (see below), whose sum is σ = 164265600. Its totient is φ = 22175208.

The previous prime is 70222517. The next prime is 70222541. The reversal of 70222518 is 81522207.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 70222491 and 70222500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70222517) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33196 + ... + 35247.

It is an arithmetic number, because the mean of its divisors is an integer number (5133300).

Almost surely, 2^70222518 is an apocalyptic number.

70222518 is an abundant number, since it is smaller than the sum of its proper divisors (94043082).

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

70222518 is a wasteful number, since it uses less digits than its factorization.

70222518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68473 (or 68467 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 70222518 is about 8379.8877080782. The cubic root of 70222518 is about 412.5647633852.

It can be divided in two parts, 702 and 22518, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 70222518 in words is "seventy million, two hundred twenty-two thousand, five hundred eighteen".