213880490 has 8 divisors (see below), whose sum is σ = 384984900. Its totient is φ = 85552192.

The previous prime is 213880483. The next prime is 213880507. The reversal of 213880490 is 94088312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 212022721 + 1857769 = 14561^2 + 1363^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 213880490.

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 3 ways as a sum of consecutive naturals, for example, 10694015 + ... + 10694034.

Almost surely, 2^213880490 is an apocalyptic number.

213880490 is a deficient number, since it is larger than the sum of its proper divisors (171104410).

213880490 is a wasteful number, since it uses less digits than its factorization.

213880490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21388056.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 213880490 is about 14624.6535001688. The cubic root of 213880490 is about 598.0310364462.

It can be divided in two parts, 2138 and 80490, that added together give a palindrome (82628).

The spelling of 213880490 in words is "two hundred thirteen million, eight hundred eighty thousand, four hundred ninety".