70321120 has 96 divisors (see below), whose sum is σ = 176033088. Its totient is φ = 26492928.

The previous prime is 70321117. The next prime is 70321151. The reversal of 70321120 is 2112307.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 70321094 and 70321103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356862 + ... + 357058.

It is an arithmetic number, because the mean of its divisors is an integer number (1833678).

Almost surely, 2^70321120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70321120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88016544).

70321120 is an abundant number, since it is smaller than the sum of its proper divisors (105711968).

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

70321120 is a wasteful number, since it uses less digits than its factorization.

70321120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 70321120 is about 8385.7688973642. The cubic root of 70321120 is about 412.7577721562.

Adding to 70321120 its reverse (2112307), we get a palindrome (72433427).

The spelling of 70321120 in words is "seventy million, three hundred twenty-one thousand, one hundred twenty".