70280352 has 48 divisors (see below), whose sum is σ = 204986880. Its totient is φ = 23426496.

The previous prime is 70280351. The next prime is 70280359. The reversal of 70280352 is 25308207.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (70280351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39808 + ... + 41535.

It is an arithmetic number, because the mean of its divisors is an integer number (4270560).

Almost surely, 2^70280352 is an apocalyptic number.

70280352 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

70280352 is an abundant number, since it is smaller than the sum of its proper divisors (134706528).

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

70280352 is a wasteful number, since it uses less digits than its factorization.

70280352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81362 (or 81348 counting only the distinct ones).

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

The square root of 70280352 is about 8383.3377601049. The cubic root of 70280352 is about 412.6779926071.

Adding to 70280352 its reverse (25308207), we get a palindrome (95588559).

The spelling of 70280352 in words is "seventy million, two hundred eighty thousand, three hundred fifty-two".