70568820 has 240 divisors, whose sum is σ = 260198400. Its totient is φ = 16003008.

The previous prime is 70568809. The next prime is 70568821. The reversal of 70568820 is 2886507.

70568820 is a `hidden beast` number, since 70 + 568 + 8 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70568821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 555597 + ... + 555723.

It is an arithmetic number, because the mean of its divisors is an integer number (1084160).

Almost surely, 2^70568820 is an apocalyptic number.

70568820 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70568820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130099200).

70568820 is an abundant number, since it is smaller than the sum of its proper divisors (189629580).

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

70568820 is a wasteful number, since it uses less digits than its factorization.

70568820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 70568820 is about 8400.5249835948. The cubic root of 70568820 is about 413.2418386338.

It can be divided in two parts, 7056 and 8820, that added together give a square (15876 = 126²).

The spelling of 70568820 in words is "seventy million, five hundred sixty-eight thousand, eight hundred twenty".