70120000 has 70 divisors (see below), whose sum is σ = 173973998. Its totient is φ = 28032000.

The previous prime is 70119967. The next prime is 70120067. The reversal of 70120000 is 2107.

It can be written as a sum of positive squares in 5 ways, for example, as 48664576 + 21455424 = 6976^2 + 4632^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39124 + ... + 40876.

Almost surely, 2^70120000 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 70120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86986999).

70120000 is an abundant number, since it is smaller than the sum of its proper divisors (103853998).

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

70120000 is an equidigital number, since it uses as much as digits as its factorization.

70120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 10.

The square root of 70120000 is about 8373.7685661833. The cubic root of 70120000 is about 412.3638975534.

Adding to 70120000 its reverse (2107), we get a palindrome (70122107).

The spelling of 70120000 in words is "seventy million, one hundred twenty thousand".