213287298 has 48 divisors (see below), whose sum is σ = 498236544. Its totient is φ = 60691680.

The previous prime is 213287297. The next prime is 213287309. The reversal of 213287298 is 892782312.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (213287297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78336 + ... + 81012.

It is an arithmetic number, because the mean of its divisors is an integer number (10379928).

Almost surely, 2^213287298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213287298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249118272).

213287298 is an abundant number, since it is smaller than the sum of its proper divisors (284949246).

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

213287298 is a wasteful number, since it uses less digits than its factorization.

213287298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967 (or 2960 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 213287298 is about 14604.3588698717. The cubic root of 213287298 is about 597.4776499988.

The spelling of 213287298 in words is "two hundred thirteen million, two hundred eighty-seven thousand, two hundred ninety-eight".