70842128 has 80 divisors (see below), whose sum is σ = 171953280. Its totient is φ = 27568128.

The previous prime is 70842119. The next prime is 70842197. The reversal of 70842128 is 82124807.

It is a junction number, because it is equal to n+sod(n) for n = 70842094 and 70842103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54575 + ... + 55857.

It is an arithmetic number, because the mean of its divisors is an integer number (2149416).

Almost surely, 2^70842128 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 70842128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85976640).

70842128 is an abundant number, since it is smaller than the sum of its proper divisors (101111152).

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

70842128 is a wasteful number, since it uses less digits than its factorization.

70842128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1338 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 70842128 is about 8416.7765801404. The cubic root of 70842128 is about 413.7746367710.

The spelling of 70842128 in words is "seventy million, eight hundred forty-two thousand, one hundred twenty-eight".