68770428 has 12 divisors (see below), whose sum is σ = 160464360. Its totient is φ = 22923472.

The previous prime is 68770417. The next prime is 68770439. The reversal of 68770428 is 82407786.

It is an interprime number because it is at equal distance from previous prime (68770417) and next prime (68770439).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 68770428.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2865423 + ... + 2865446.

It is an arithmetic number, because the mean of its divisors is an integer number (13372030).

Almost surely, 2^68770428 is an apocalyptic number.

It is an amenable number.

68770428 is an abundant number, since it is smaller than the sum of its proper divisors (91693932).

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

68770428 is a wasteful number, since it uses less digits than its factorization.

68770428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5730876 (or 5730874 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 68770428 is about 8292.7937391448. The cubic root of 68770428 is about 409.7012060578.

The spelling of 68770428 in words is "sixty-eight million, seven hundred seventy thousand, four hundred twenty-eight".