70812030 has 32 divisors (see below), whose sum is σ = 170201088. Its totient is φ = 18855200.

The previous prime is 70812023. The next prime is 70812041. The reversal of 70812030 is 3021807.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70811988 and 70812006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26035 + ... + 28625.

It is an arithmetic number, because the mean of its divisors is an integer number (5318784).

Almost surely, 2^70812030 is an apocalyptic number.

70812030 is an abundant number, since it is smaller than the sum of its proper divisors (99389058).

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

70812030 is a wasteful number, since it uses less digits than its factorization.

70812030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 70812030 is about 8414.9884135393. The cubic root of 70812030 is about 413.7160296800.

Adding to 70812030 its reverse (3021807), we get a palindrome (73833837).

The spelling of 70812030 in words is "seventy million, eight hundred twelve thousand, thirty".