70530120 has 96 divisors (see below), whose sum is σ = 231491520. Its totient is φ = 18622080.

The previous prime is 70530107. The next prime is 70530139. The reversal of 70530120 is 2103507.

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 = 70530093 and 70530102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37605 + ... + 39435.

It is an arithmetic number, because the mean of its divisors is an integer number (2411370).

Almost surely, 2^70530120 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 70530120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115745760).

70530120 is an abundant number, since it is smaller than the sum of its proper divisors (160961400).

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

70530120 is a wasteful number, since it uses less digits than its factorization.

70530120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955 (or 1948 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 70530120 is about 8398.2212402389. The cubic root of 70530120 is about 413.1662840973.

Adding to 70530120 its reverse (2103507), we get a palindrome (72633627).

The spelling of 70530120 in words is "seventy million, five hundred thirty thousand, one hundred twenty".