70730768 has 80 divisors (see below), whose sum is σ = 152668800. Its totient is φ = 31610880.

The previous prime is 70730767. The next prime is 70730813. The reversal of 70730768 is 86703707.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (70730767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625880 + ... + 625992.

It is an arithmetic number, because the mean of its divisors is an integer number (1908360).

Almost surely, 2^70730768 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 70730768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76334400).

70730768 is an abundant number, since it is smaller than the sum of its proper divisors (81938032).

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

70730768 is a wasteful number, since it uses less digits than its factorization.

70730768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 70730768 is about 8410.1586191938. The cubic root of 70730768 is about 413.5577126047.

The spelling of 70730768 in words is "seventy million, seven hundred thirty thousand, seven hundred sixty-eight".