70228100 has 18 divisors (see below), whose sum is σ = 152395194. Its totient is φ = 28091200.

The previous prime is 70228091. The next prime is 70228129. The reversal of 70228100 is 182207.

It can be written as a sum of positive squares in 3 ways, for example, as 238144 + 69989956 = 488^2 + 8366^2 .

It is a super-2 number, since 2×70228100² = 9863972059220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 5 ways as a sum of consecutive naturals, for example, 351041 + ... + 351240.

Almost surely, 2^70228100 is an apocalyptic number.

It is an amenable number.

70228100 is an abundant number, since it is smaller than the sum of its proper divisors (82167094).

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

70228100 is a wasteful number, since it uses less digits than its factorization.

70228100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702295 (or 702288 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 70228100 is about 8380.2207608153. The cubic root of 70228100 is about 412.5756947102.

The spelling of 70228100 in words is "seventy million, two hundred twenty-eight thousand, one hundred".