70428852 has 120 divisors (see below), whose sum is σ = 207182976. Its totient is φ = 20699712.

The previous prime is 70428821. The next prime is 70428881. The reversal of 70428852 is 25882407.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 96513 + ... + 97239.

Almost surely, 2^70428852 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 70428852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103591488).

70428852 is an abundant number, since it is smaller than the sum of its proper divisors (136754124).

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

70428852 is a wasteful number, since it uses less digits than its factorization.

70428852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 70428852 is about 8392.1899406532. The cubic root of 70428852 is about 412.9684463305.

The spelling of 70428852 in words is "seventy million, four hundred twenty-eight thousand, eight hundred fifty-two".