70610220 has 36 divisors (see below), whose sum is σ = 214184880. Its totient is φ = 18829344.

The previous prime is 70610209. The next prime is 70610233. The reversal of 70610220 is 2201607.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 70610193 and 70610202.

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 11 ways as a sum of consecutive naturals, for example, 195960 + ... + 196319.

It is an arithmetic number, because the mean of its divisors is an integer number (5949580).

Almost surely, 2^70610220 is an apocalyptic number.

It is an amenable number.

70610220 is an abundant number, since it is smaller than the sum of its proper divisors (143574660).

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

70610220 is a wasteful number, since it uses less digits than its factorization.

70610220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392294 (or 392289 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 70610220 is about 8402.9887540089. The cubic root of 70610220 is about 413.3226338426.

Adding to 70610220 its reverse (2201607), we get a palindrome (72811827).

The spelling of 70610220 in words is "seventy million, six hundred ten thousand, two hundred twenty".