70750128 has 20 divisors (see below), whose sum is σ = 182771288. Its totient is φ = 23583360.

The previous prime is 70750103. The next prime is 70750157. The reversal of 70750128 is 82105707.

It is a happy number.

It is a super-2 number, since 2×70750128² = 10011161224032768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70750095 and 70750104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 736933 + ... + 737028.

Almost surely, 2^70750128 is an apocalyptic number.

It is an amenable number.

70750128 is an abundant number, since it is smaller than the sum of its proper divisors (112021160).

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

70750128 is a wasteful number, since it uses less digits than its factorization.

70750128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473972 (or 1473966 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 70750128 is about 8411.3095294371. The cubic root of 70750128 is about 413.5954413384.

The spelling of 70750128 in words is "seventy million, seven hundred fifty thousand, one hundred twenty-eight".