213492386 has 8 divisors (see below), whose sum is σ = 323409564. Its totient is φ = 105689200.

The previous prime is 213492373. The next prime is 213492437. The reversal of 213492386 is 683294312.

It can be written as a sum of positive squares in 2 ways, for example, as 193071025 + 20421361 = 13895^2 + 4519^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 528245 + ... + 528648.

Almost surely, 2^213492386 is an apocalyptic number.

213492386 is a deficient number, since it is larger than the sum of its proper divisors (109917178).

213492386 is a wasteful number, since it uses less digits than its factorization.

213492386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056996.

The product of its digits is 62208, while the sum is 38.

The square root of 213492386 is about 14611.3786481632. The cubic root of 213492386 is about 597.6690916886.

The spelling of 213492386 in words is "two hundred thirteen million, four hundred ninety-two thousand, three hundred eighty-six".