213388476 has 24 divisors (see below), whose sum is σ = 569036160. Its totient is φ = 60968112.

The previous prime is 213388453. The next prime is 213388493. The reversal of 213388476 is 674883312.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1270086 + ... + 1270253.

It is an arithmetic number, because the mean of its divisors is an integer number (23709840).

Almost surely, 2^213388476 is an apocalyptic number.

It is an amenable number.

213388476 is an abundant number, since it is smaller than the sum of its proper divisors (355647684).

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

213388476 is a wasteful number, since it uses less digits than its factorization.

213388476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540353 (or 2540351 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 213388476 is about 14607.8224249886. The cubic root of 213388476 is about 597.5721110659.

It can be divided in two parts, 2133 and 88476, that added together give a palindrome (90609).

The spelling of 213388476 in words is "two hundred thirteen million, three hundred eighty-eight thousand, four hundred seventy-six".