70228642 has 12 divisors (see below), whose sum is σ = 115790598. Its totient is φ = 31922000.

The previous prime is 70228619. The next prime is 70228661. The reversal of 70228642 is 24682207.

It can be written as a sum of positive squares in only one way, i.e., 50965321 + 19263321 = 7139^2 + 4389^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 144859 + ... + 145342.

Almost surely, 2^70228642 is an apocalyptic number.

70228642 is a deficient number, since it is larger than the sum of its proper divisors (45561956).

70228642 is a wasteful number, since it uses less digits than its factorization.

70228642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290225 (or 290214 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 70228642 is about 8380.2530988032. The cubic root of 70228642 is about 412.5767560871.

The spelling of 70228642 in words is "seventy million, two hundred twenty-eight thousand, six hundred forty-two".