70652280 has 64 divisors (see below), whose sum is σ = 216483840. Its totient is φ = 18438272.

The previous prime is 70652273. The next prime is 70652293. The reversal of 70652280 is 8225607.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624 + ... + 11903.

It is an arithmetic number, because the mean of its divisors is an integer number (3382560).

Almost surely, 2^70652280 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 70652280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108241920).

70652280 is an abundant number, since it is smaller than the sum of its proper divisors (145831560).

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

70652280 is a wasteful number, since it uses less digits than its factorization.

70652280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12588 (or 12584 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 70652280 is about 8405.4910623949. The cubic root of 70652280 is about 413.4046847571.

Adding to 70652280 its reverse (8225607), we get a palindrome (78877887).

The spelling of 70652280 in words is "seventy million, six hundred fifty-two thousand, two hundred eighty".