70288284 has 96 divisors (see below), whose sum is σ = 187729920. Its totient is φ = 20275200.

The previous prime is 70288249. The next prime is 70288289. The reversal of 70288284 is 48288207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70288289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364092 + ... + 364284.

It is an arithmetic number, because the mean of its divisors is an integer number (1955520).

Almost surely, 2^70288284 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 70288284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93864960).

70288284 is an abundant number, since it is smaller than the sum of its proper divisors (117441636).

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

70288284 is a wasteful number, since it uses less digits than its factorization.

70288284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 70288284 is about 8383.8108280185. The cubic root of 70288284 is about 412.6935172813.

The spelling of 70288284 in words is "seventy million, two hundred eighty-eight thousand, two hundred eighty-four".