213331040 has 48 divisors (see below), whose sum is σ = 542768688. Its totient is φ = 78767616.

The previous prime is 213331037. The next prime is 213331043. The reversal of 213331040 is 40133312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (213331037) and next prime (213331043).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213331043) 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 7 ways as a sum of consecutive naturals, for example, 49202 + ... + 53361.

It is an arithmetic number, because the mean of its divisors is an integer number (11307681).

Almost surely, 2^213331040 is an apocalyptic number.

213331040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213331040 is an abundant number, since it is smaller than the sum of its proper divisors (329437648).

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

213331040 is a wasteful number, since it uses less digits than its factorization.

213331040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102591 (or 102583 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 213331040 is about 14605.8563596935. The cubic root of 213331040 is about 597.5184917510.

Adding to 213331040 its reverse (40133312), we get a palindrome (253464352).

The spelling of 213331040 in words is "two hundred thirteen million, three hundred thirty-one thousand, forty".