213463660 has 24 divisors (see below), whose sum is σ = 457813440. Its totient is φ = 83568384.

The previous prime is 213463639. The next prime is 213463661. The reversal of 213463660 is 66364312.

213463660 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213463661) 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, 112605 + ... + 114484.

It is an arithmetic number, because the mean of its divisors is an integer number (19075560).

Almost surely, 2^213463660 is an apocalyptic number.

213463660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213463660 is an abundant number, since it is smaller than the sum of its proper divisors (244349780).

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

213463660 is a wasteful number, since it uses less digits than its factorization.

213463660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227145 (or 227143 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 213463660 is about 14610.3956140825. The cubic root of 213463660 is about 597.6422844681.

The spelling of 213463660 in words is "two hundred thirteen million, four hundred sixty-three thousand, six hundred sixty".