70231330 has 48 divisors (see below), whose sum is σ = 141707880. Its totient is φ = 25019904.

The previous prime is 70231309. The next prime is 70231333. The reversal of 70231330 is 3313207.

It can be written as a sum of positive squares in 12 ways, for example, as 1058841 + 69172489 = 1029^2 + 8317^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70231298 and 70231307.

It is not an unprimeable number, because it can be changed into a prime (70231333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48294 + ... + 49726.

Almost surely, 2^70231330 is an apocalyptic number.

70231330 is an abundant number, since it is smaller than the sum of its proper divisors (71476550).

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

70231330 is a wasteful number, since it uses less digits than its factorization.

70231330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 70231330 is about 8380.4134742863. The cubic root of 70231330 is about 412.5820198092.

Adding to 70231330 its reverse (3313207), we get a palindrome (73544537).

The spelling of 70231330 in words is "seventy million, two hundred thirty-one thousand, three hundred thirty".