213885774 has 24 divisors (see below), whose sum is σ = 487810440. Its totient is φ = 67542768.

The previous prime is 213885773. The next prime is 213885787. The reversal of 213885774 is 477588312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213885773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 312357 + ... + 313040.

It is an arithmetic number, because the mean of its divisors is an integer number (20325435).

Almost surely, 2^213885774 is an apocalyptic number.

213885774 is an abundant number, since it is smaller than the sum of its proper divisors (273924666).

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

213885774 is a wasteful number, since it uses less digits than its factorization.

213885774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625424 (or 625421 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 213885774 is about 14624.8341529058. The cubic root of 213885774 is about 598.0359612681.

The spelling of 213885774 in words is "two hundred thirteen million, eight hundred eighty-five thousand, seven hundred seventy-four".