70303272 has 128 divisors (see below), whose sum is σ = 201519360. Its totient is φ = 20275200.

The previous prime is 70303271. The next prime is 70303273. The reversal of 70303272 is 27230307.

It is an interprime number because it is at equal distance from previous prime (70303271) and next prime (70303273).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (70303271) 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 31 ways as a sum of consecutive naturals, for example, 696022 + ... + 696122.

It is an arithmetic number, because the mean of its divisors is an integer number (1574370).

Almost surely, 2^70303272 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 70303272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100759680).

70303272 is an abundant number, since it is smaller than the sum of its proper divisors (131216088).

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

70303272 is a wasteful number, since it uses less digits than its factorization.

70303272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 70303272 is about 8384.7046459610. The cubic root of 70303272 is about 412.7228489161.

Adding to 70303272 its reverse (27230307), we get a palindrome (97533579).

The spelling of 70303272 in words is "seventy million, three hundred three thousand, two hundred seventy-two".