213246984 has 128 divisors (see below), whose sum is σ = 585066240. Its totient is φ = 64576512.

The previous prime is 213246983. The next prime is 213247043. The reversal of 213246984 is 489642312.

It is not an unprimeable number, because it can be changed into a prime (213246983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1082374 + ... + 1082570.

It is an arithmetic number, because the mean of its divisors is an integer number (4570830).

Almost surely, 2^213246984 is an apocalyptic number.

213246984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213246984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292533120).

213246984 is an abundant number, since it is smaller than the sum of its proper divisors (371819256).

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

213246984 is a wasteful number, since it uses less digits than its factorization.

213246984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 315 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 213246984 is about 14602.9786002719. The cubic root of 213246984 is about 597.4400040131.

The spelling of 213246984 in words is "two hundred thirteen million, two hundred forty-six thousand, nine hundred eighty-four".