70428052 has 12 divisors (see below), whose sum is σ = 123310656. Its totient is φ = 35196440.

The previous prime is 70428011. The next prime is 70428053. The reversal of 70428052 is 25082407.

It is a super-2 number, since 2×70428052² = 9920221017029408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70428052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70428053) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9477 + ... + 15187.

It is an arithmetic number, because the mean of its divisors is an integer number (10275888).

Almost surely, 2^70428052 is an apocalyptic number.

It is an amenable number.

70428052 is a deficient number, since it is larger than the sum of its proper divisors (52882604).

70428052 is a wasteful number, since it uses less digits than its factorization.

70428052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8798 (or 8796 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 70428052 is about 8392.1422771543. The cubic root of 70428052 is about 412.9668826910.

The spelling of 70428052 in words is "seventy million, four hundred twenty-eight thousand, fifty-two".