70207272 has 48 divisors (see below), whose sum is σ = 192011040. Its totient is φ = 23172768.

The previous prime is 70207259. The next prime is 70207273. The reversal of 70207272 is 27270207.

It is a super-2 number, since 2×70207272² = 9858122083363968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70207273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2683 + ... + 12149.

It is an arithmetic number, because the mean of its divisors is an integer number (4000230).

Almost surely, 2^70207272 is an apocalyptic number.

70207272 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70207272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96005520).

70207272 is an abundant number, since it is smaller than the sum of its proper divisors (121803768).

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

70207272 is a wasteful number, since it uses less digits than its factorization.

70207272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9582 (or 9575 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 70207272 is about 8378.9779806370. The cubic root of 70207272 is about 412.5349039336.

Adding to 70207272 its reverse (27270207), we get a palindrome (97477479).

The spelling of 70207272 in words is "seventy million, two hundred seven thousand, two hundred seventy-two".