70473128 has 64 divisors (see below), whose sum is σ = 153489600. Its totient is φ = 29998080.

The previous prime is 70473121. The next prime is 70473133. The reversal of 70473128 is 82137407.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 70473094 and 70473103.

It is not an unprimeable number, because it can be changed into a prime (70473121) 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, 188750 + ... + 189122.

It is an arithmetic number, because the mean of its divisors is an integer number (2398275).

Almost surely, 2^70473128 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 70473128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76744800).

70473128 is an abundant number, since it is smaller than the sum of its proper divisors (83016472).

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

70473128 is a wasteful number, since it uses less digits than its factorization.

70473128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 70473128 is about 8394.8274550464. The cubic root of 70473128 is about 413.0549675034.

The spelling of 70473128 in words is "seventy million, four hundred seventy-three thousand, one hundred twenty-eight".