70320222 has 48 divisors (see below), whose sum is σ = 178189440. Its totient is φ = 19622736.

The previous prime is 70320221. The next prime is 70320227. The reversal of 70320222 is 22202307.

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 = 70320195 and 70320204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70320221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1072 + ... + 11907.

It is an arithmetic number, because the mean of its divisors is an integer number (3712280).

Almost surely, 2^70320222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70320222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89094720).

70320222 is an abundant number, since it is smaller than the sum of its proper divisors (107869218).

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

70320222 is a wasteful number, since it uses less digits than its factorization.

70320222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13037 (or 13034 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 70320222 is about 8385.7153541007. The cubic root of 70320222 is about 412.7560151778.

Adding to 70320222 its reverse (22202307), we get a palindrome (92522529).

The spelling of 70320222 in words is "seventy million, three hundred twenty thousand, two hundred twenty-two".