213745400 has 48 divisors (see below), whose sum is σ = 542141640. Its totient is φ = 77724800.

The previous prime is 213745397. The next prime is 213745409. The reversal of 213745400 is 4547312.

It is a self number, because there is not a number n which added to its sum of digits gives 213745400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213745409) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 46379 + ... + 50778.

Almost surely, 2^213745400 is an apocalyptic number.

213745400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213745400 is an abundant number, since it is smaller than the sum of its proper divisors (328396240).

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

213745400 is a wasteful number, since it uses less digits than its factorization.

213745400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97184 (or 97175 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 213745400 is about 14620.0341996864. The cubic root of 213745400 is about 597.9051015878.

The spelling of 213745400 in words is "two hundred thirteen million, seven hundred forty-five thousand, four hundred".