70215630 has 16 divisors (see below), whose sum is σ = 168517584. Its totient is φ = 18724160.

The previous prime is 70215617. The next prime is 70215631. The reversal of 70215630 is 3651207.

It is a self number, because there is not a number n which added to its sum of digits gives 70215630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70215631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170231 + ... + 1170290.

It is an arithmetic number, because the mean of its divisors is an integer number (10532349).

Almost surely, 2^70215630 is an apocalyptic number.

70215630 is an abundant number, since it is smaller than the sum of its proper divisors (98301954).

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

70215630 is a wasteful number, since it uses less digits than its factorization.

70215630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340531.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 70215630 is about 8379.4767139721. The cubic root of 70215630 is about 412.5512736999.

Adding to 70215630 its reverse (3651207), we get a palindrome (73866837).

The spelling of 70215630 in words is "seventy million, two hundred fifteen thousand, six hundred thirty".