70300000 has 144 divisors (see below), whose sum is σ = 187019280. Its totient is φ = 25920000.

The previous prime is 70299997. The next prime is 70300001. The reversal of 70300000 is 307.

70300000 = 55³ + 56³ + ... + 130³.

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

It is a self number, because there is not a number n which added to its sum of digits gives 70300000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70300001) 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, 1899982 + ... + 1900018.

It is an arithmetic number, because the mean of its divisors is an integer number (1298745).

Almost surely, 2^70300000 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 70300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93509640).

70300000 is an abundant number, since it is smaller than the sum of its proper divisors (116719280).

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

70300000 is an equidigital number, since it uses as much as digits as its factorization.

70300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 21, while the sum is 10.

The square root of 70300000 is about 8384.5095265018. The cubic root of 70300000 is about 412.7164459419.

Adding to 70300000 its reverse (307), we get a palindrome (70300307).

The spelling of 70300000 in words is "seventy million, three hundred thousand".