210945494 has 16 divisors (see below), whose sum is σ = 323785728. Its totient is φ = 103025832.

The previous prime is 210945491. The next prime is 210945517. The reversal of 210945494 is 494549012.

210945494 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210945491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53267 + ... + 57089.

It is an arithmetic number, because the mean of its divisors is an integer number (20236608).

Almost surely, 2^210945494 is an apocalyptic number.

210945494 is a deficient number, since it is larger than the sum of its proper divisors (112840234).

210945494 is a wasteful number, since it uses less digits than its factorization.

210945494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 210945494 is about 14523.9627512604. The cubic root of 210945494 is about 595.2829142058.

The spelling of 210945494 in words is "two hundred ten million, nine hundred forty-five thousand, four hundred ninety-four".