70732080 has 120 divisors (see below), whose sum is σ = 245281920. Its totient is φ = 18247680.

The previous prime is 70732069. The next prime is 70732099. The reversal of 70732080 is 8023707.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×70732080² = 10006054282252800, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 20736 + ... + 23904.

It is an arithmetic number, because the mean of its divisors is an integer number (2044016).

Almost surely, 2^70732080 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 70732080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122640960).

70732080 is an abundant number, since it is smaller than the sum of its proper divisors (174549840).

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

70732080 is a wasteful number, since it uses less digits than its factorization.

70732080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219 (or 3210 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 70732080 is about 8410.2366197391. The cubic root of 70732080 is about 413.5602696454.

Adding to 70732080 its reverse (8023707), we get a palindrome (78755787).

The spelling of 70732080 in words is "seventy million, seven hundred thirty-two thousand, eighty".