210740428 has 12 divisors (see below), whose sum is σ = 368897760. Its totient is φ = 105341072.

The previous prime is 210740417. The next prime is 210740437. The reversal of 210740428 is 824047012.

210740428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 210740396 and 210740405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22653 + ... + 30571.

It is an arithmetic number, because the mean of its divisors is an integer number (30741480).

Almost surely, 2^210740428 is an apocalyptic number.

It is an amenable number.

210740428 is a deficient number, since it is larger than the sum of its proper divisors (158157332).

210740428 is a wasteful number, since it uses less digits than its factorization.

210740428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14576 (or 14574 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 210740428 is about 14516.9014600224. The cubic root of 210740428 is about 595.0899546222.

The spelling of 210740428 in words is "two hundred ten million, seven hundred forty thousand, four hundred twenty-eight".