70208530 has 16 divisors (see below), whose sum is σ = 144429120. Its totient is φ = 24071472.

The previous prime is 70208519. The next prime is 70208543. The reversal of 70208530 is 3580207.

It is a junction number, because it is equal to n+sod(n) for n = 70208495 and 70208504.

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 7 ways as a sum of consecutive naturals, for example, 501420 + ... + 501559.

It is an arithmetic number, because the mean of its divisors is an integer number (9026820).

Almost surely, 2^70208530 is an apocalyptic number.

70208530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70208530 is an abundant number, since it is smaller than the sum of its proper divisors (74220590).

70208530 is a wasteful number, since it uses less digits than its factorization.

70208530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002993.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 70208530 is about 8379.0530491220. The cubic root of 70208530 is about 412.5373679034.

Adding to 70208530 its reverse (3580207), we get a palindrome (73788737).

The spelling of 70208530 in words is "seventy million, two hundred eight thousand, five hundred thirty".