213371380 has 24 divisors (see below), whose sum is σ = 459010440. Its totient is φ = 83266560.

The previous prime is 213371377. The next prime is 213371407. The reversal of 213371380 is 83173312.

It can be written as a sum of positive squares in 4 ways, for example, as 17539344 + 195832036 = 4188^2 + 13994^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 129285 + ... + 130924.

It is an arithmetic number, because the mean of its divisors is an integer number (19125435).

Almost surely, 2^213371380 is an apocalyptic number.

213371380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213371380 is an abundant number, since it is smaller than the sum of its proper divisors (245639060).

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

213371380 is a wasteful number, since it uses less digits than its factorization.

213371380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260259 (or 260257 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 213371380 is about 14607.2372473374. The cubic root of 213371380 is about 597.5561521196.

The spelling of 213371380 in words is "two hundred thirteen million, three hundred seventy-one thousand, three hundred eighty".