213489842 has 16 divisors (see below), whose sum is σ = 339380280. Its totient is φ = 100374528.

The previous prime is 213489827. The next prime is 213489877. The reversal of 213489842 is 248984312.

213489842 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 207043321 + 6446521 = 14389^2 + 2539^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213489842.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48518 + ... + 52734.

Almost surely, 2^213489842 is an apocalyptic number.

213489842 is a deficient number, since it is larger than the sum of its proper divisors (125890438).

213489842 is a wasteful number, since it uses less digits than its factorization.

213489842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725.

The product of its digits is 110592, while the sum is 41.

The square root of 213489842 is about 14611.2915924637. The cubic root of 213489842 is about 597.6667177145. Note that the first 3 decimals are identical.

The spelling of 213489842 in words is "two hundred thirteen million, four hundred eighty-nine thousand, eight hundred forty-two".