201234810 has 32 divisors (see below), whose sum is σ = 551958912. Its totient is φ = 45996480.

The previous prime is 201234769. The next prime is 201234827. The reversal of 201234810 is 18432102.

It is a super-2 number, since 2×201234810² = 80990897511472200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478921 + ... + 479340.

It is an arithmetic number, because the mean of its divisors is an integer number (17248716).

Almost surely, 2^201234810 is an apocalyptic number.

201234810 is an abundant number, since it is smaller than the sum of its proper divisors (350724102).

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

201234810 is a wasteful number, since it uses less digits than its factorization.

201234810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958278.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 201234810 is about 14185.7255718557. The cubic root of 201234810 is about 586.0046146553.

Adding to 201234810 its reverse (18432102), we get a palindrome (219666912).

The spelling of 201234810 in words is "two hundred one million, two hundred thirty-four thousand, eight hundred ten".