213457476 has 48 divisors (see below), whose sum is σ = 525916160. Its totient is φ = 67197600.

The previous prime is 213457471. The next prime is 213457493. The reversal of 213457476 is 674754312.

It is not an unprimeable number, because it can be changed into a prime (213457471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82401 + ... + 84951.

Almost surely, 2^213457476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213457476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262958080).

213457476 is an abundant number, since it is smaller than the sum of its proper divisors (312458684).

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

213457476 is a wasteful number, since it uses less digits than its factorization.

213457476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944 (or 2942 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 213457476 is about 14610.1839824145. The cubic root of 213457476 is about 597.6365132195.

The spelling of 213457476 in words is "two hundred thirteen million, four hundred fifty-seven thousand, four hundred seventy-six".