213578468 has 48 divisors (see below), whose sum is σ = 408844800. Its totient is φ = 97251840.

The previous prime is 213578459. The next prime is 213578501. The reversal of 213578468 is 864875312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633596 + ... + 633932.

It is an arithmetic number, because the mean of its divisors is an integer number (8517600).

Almost surely, 2^213578468 is an apocalyptic number.

It is an amenable number.

213578468 is a deficient number, since it is larger than the sum of its proper divisors (195266332).

213578468 is a wasteful number, since it uses less digits than its factorization.

213578468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 658 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 213578468 is about 14614.3240692137. The cubic root of 213578468 is about 597.7494093656.

The spelling of 213578468 in words is "two hundred thirteen million, five hundred seventy-eight thousand, four hundred sixty-eight".