213623046 has 144 divisors (see below), whose sum is σ = 599534208. Its totient is φ = 54432000.

The previous prime is 213623041. The next prime is 213623063. The reversal of 213623046 is 640326312.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

213623046 is an undulating number in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213623041) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 355146 + ... + 355746.

It is an arithmetic number, because the mean of its divisors is an integer number (4163432).

Almost surely, 2^213623046 is an apocalyptic number.

213623046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 213623046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299767104).

213623046 is an abundant number, since it is smaller than the sum of its proper divisors (385911162).

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

213623046 is a wasteful number, since it uses less digits than its factorization.

213623046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 213623046 is about 14615.8491371524. The cubic root of 213623046 is about 597.7909938002.

Adding to 213623046 its reverse (640326312), we get a palindrome (853949358).

The spelling of 213623046 in words is "two hundred thirteen million, six hundred twenty-three thousand, forty-six".