213203748 has 12 divisors (see below), whose sum is σ = 497475440. Its totient is φ = 71067912.

The previous prime is 213203743. The next prime is 213203759. The reversal of 213203748 is 847302312.

213203748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×213203748² = 90911676322495008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213203743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8883478 + ... + 8883501.

Almost surely, 2^213203748 is an apocalyptic number.

It is an amenable number.

213203748 is an abundant number, since it is smaller than the sum of its proper divisors (284271692).

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

213203748 is a wasteful number, since it uses less digits than its factorization.

213203748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17766986 (or 17766984 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 213203748 is about 14601.4981423140. The cubic root of 213203748 is about 597.3996241345.

The spelling of 213203748 in words is "two hundred thirteen million, two hundred three thousand, seven hundred forty-eight".