210969340 has 24 divisors (see below), whose sum is σ = 462299040. Its totient is φ = 80718528.

The previous prime is 210969307. The next prime is 210969359. The reversal of 210969340 is 43969012.

210969340 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 = 210969296 and 210969305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228855 + ... + 229774.

It is an arithmetic number, because the mean of its divisors is an integer number (19262460).

Almost surely, 2^210969340 is an apocalyptic number.

210969340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210969340 is an abundant number, since it is smaller than the sum of its proper divisors (251329700).

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

210969340 is a wasteful number, since it uses less digits than its factorization.

210969340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458661 (or 458659 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 210969340 is about 14524.7836472699. The cubic root of 210969340 is about 595.3053442994.

The spelling of 210969340 in words is "two hundred ten million, nine hundred sixty-nine thousand, three hundred forty".