213029680 has 40 divisors (see below), whose sum is σ = 516832992. Its totient is φ = 81506304.

The previous prime is 213029627. The next prime is 213029681. The reversal of 213029680 is 86920312.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (213029681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56049 + ... + 59728.

Almost surely, 2^213029680 is an apocalyptic number.

213029680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213029680 is an abundant number, since it is smaller than the sum of its proper divisors (303803312).

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

213029680 is a wasteful number, since it uses less digits than its factorization.

213029680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115813 (or 115807 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 213029680 is about 14595.5363039527. The cubic root of 213029680 is about 597.2369996159.

Adding to 213029680 its reverse (86920312), we get a palindrome (299949992).

The spelling of 213029680 in words is "two hundred thirteen million, twenty-nine thousand, six hundred eighty".