70434128 has 20 divisors (see below), whose sum is σ = 144494100. Its totient is φ = 33145344.

The previous prime is 70434107. The next prime is 70434131. The reversal of 70434128 is 82143407.

It can be written as a sum of positive squares in 2 ways, for example, as 55472704 + 14961424 = 7448^2 + 3868^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70434128.

It is a congruent number.

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, 129203 + ... + 129746.

It is an arithmetic number, because the mean of its divisors is an integer number (7224705).

Almost surely, 2^70434128 is an apocalyptic number.

It is an amenable number.

70434128 is an abundant number, since it is smaller than the sum of its proper divisors (74059972).

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

70434128 is a wasteful number, since it uses less digits than its factorization.

70434128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258974 (or 258968 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 70434128 is about 8392.5042746489. The cubic root of 70434128 is about 412.9787582366.

The spelling of 70434128 in words is "seventy million, four hundred thirty-four thousand, one hundred twenty-eight".