70421060 has 12 divisors (see below), whose sum is σ = 147884268. Its totient is φ = 28168416.

The previous prime is 70421041. The next prime is 70421069. The reversal of 70421060 is 6012407.

It can be written as a sum of positive squares in 2 ways, for example, as 16516096 + 53904964 = 4064^2 + 7342^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 3521053 = 70421060 / (7 + 0 + 4 + 2 + 1 + 0 + 6 + 0).

It is not an unprimeable number, because it can be changed into a prime (70421069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1760507 + ... + 1760546.

It is an arithmetic number, because the mean of its divisors is an integer number (12323689).

Almost surely, 2^70421060 is an apocalyptic number.

It is an amenable number.

70421060 is an abundant number, since it is smaller than the sum of its proper divisors (77463208).

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

70421060 is a wasteful number, since it uses less digits than its factorization.

70421060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3521062 (or 3521060 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 70421060 is about 8391.7256866511. The cubic root of 70421060 is about 412.9532159776.

Adding to 70421060 its reverse (6012407), we get a palindrome (76433467).

The spelling of 70421060 in words is "seventy million, four hundred twenty-one thousand, sixty".