210265242 has 16 divisors (see below), whose sum is σ = 458760672. Its totient is φ = 63716720.

The previous prime is 210265199. The next prime is 210265247. The reversal of 210265242 is 242562012.

It is a happy number.

It is a super-2 number, since 2×210265242² = 88422943986637128, which contains 22 as substring.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (210265247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592853 + ... + 1592984.

It is an arithmetic number, because the mean of its divisors is an integer number (28672542).

Almost surely, 2^210265242 is an apocalyptic number.

210265242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210265242 is an abundant number, since it is smaller than the sum of its proper divisors (248495430).

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

210265242 is a wasteful number, since it uses less digits than its factorization.

210265242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185853.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 210265242 is about 14500.5255766817. The cubic root of 210265242 is about 594.6423404259.

The spelling of 210265242 in words is "two hundred ten million, two hundred sixty-five thousand, two hundred forty-two".