70253280 has 72 divisors (see below), whose sum is σ = 239744232. Its totient is φ = 18733824.

The previous prime is 70253257. The next prime is 70253291. The reversal of 70253280 is 8235207.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22954 + ... + 25833.

It is an arithmetic number, because the mean of its divisors is an integer number (3329781).

Almost surely, 2^70253280 is an apocalyptic number.

It is an amenable number.

70253280 is an abundant number, since it is smaller than the sum of its proper divisors (169490952).

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

70253280 is a wasteful number, since it uses less digits than its factorization.

70253280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48808 (or 48797 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 70253280 is about 8381.7229732317. The cubic root of 70253280 is about 412.6249979313.

Adding to 70253280 its reverse (8235207), we get a palindrome (78488487).

The spelling of 70253280 in words is "seventy million, two hundred fifty-three thousand, two hundred eighty".