70380428 has 24 divisors (see below), whose sum is σ = 124924800. Its totient is φ = 34691328.

The previous prime is 70380421. The next prime is 70380433. The reversal of 70380428 is 82408307.

It is a junction number, because it is equal to n+sod(n) for n = 70380394 and 70380403.

It is not an unprimeable number, because it can be changed into a prime (70380421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146693 + ... + 147171.

It is an arithmetic number, because the mean of its divisors is an integer number (5205200).

Almost surely, 2^70380428 is an apocalyptic number.

It is an amenable number.

70380428 is a deficient number, since it is larger than the sum of its proper divisors (54544372).

70380428 is a wasteful number, since it uses less digits than its factorization.

70380428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 70380428 is about 8389.3043811749. The cubic root of 70380428 is about 412.8737778890.

The spelling of 70380428 in words is "seventy million, three hundred eighty thousand, four hundred twenty-eight".