70305132 has 48 divisors (see below), whose sum is σ = 176111712. Its totient is φ = 21749760.

The previous prime is 70305107. The next prime is 70305133. The reversal of 70305132 is 23150307.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 70305099 and 70305108.

It is not an unprimeable number, because it can be changed into a prime (70305133) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12532 + ... + 17252.

It is an arithmetic number, because the mean of its divisors is an integer number (3668994).

Almost surely, 2^70305132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70305132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88055856).

70305132 is an abundant number, since it is smaller than the sum of its proper divisors (105806580).

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

70305132 is a wasteful number, since it uses less digits than its factorization.

70305132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818 (or 4816 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 70305132 is about 8384.8155614778. The cubic root of 70305132 is about 412.7264886601.

Adding to 70305132 its reverse (23150307), we get a palindrome (93455439).

The spelling of 70305132 in words is "seventy million, three hundred five thousand, one hundred thirty-two".