70133280 has 96 divisors (see below), whose sum is σ = 252491904. Its totient is φ = 16029696.

The previous prime is 70133267. The next prime is 70133291. The reversal of 70133280 is 8233107.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a self number, because there is not a number n which added to its sum of digits gives 70133280.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7077 + ... + 13796.

It is an arithmetic number, because the mean of its divisors is an integer number (2630124).

Almost surely, 2^70133280 is an apocalyptic number.

70133280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70133280 is an abundant number, since it is smaller than the sum of its proper divisors (182358624).

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

70133280 is a wasteful number, since it uses less digits than its factorization.

70133280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20898 (or 20890 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 70133280 is about 8374.5614810568. The cubic root of 70133280 is about 412.3899283905.

Adding to 70133280 its reverse (8233107), we get a palindrome (78366387).

The spelling of 70133280 in words is "seventy million, one hundred thirty-three thousand, two hundred eighty".