213453456 has 40 divisors (see below), whose sum is σ = 570439680. Its totient is φ = 68697216.

The previous prime is 213453451. The next prime is 213453463. The reversal of 213453456 is 654354312.

It is not an unprimeable number, because it can be changed into a prime (213453451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75280 + ... + 78063.

It is an arithmetic number, because the mean of its divisors is an integer number (14260992).

Almost surely, 2^213453456 is an apocalyptic number.

It is an amenable number.

213453456 is an abundant number, since it is smaller than the sum of its proper divisors (356986224).

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

213453456 is a wasteful number, since it uses less digits than its factorization.

213453456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153383 (or 153377 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 213453456 is about 14610.0464064971. The cubic root of 213453456 is about 597.6327614748.

The spelling of 213453456 in words is "two hundred thirteen million, four hundred fifty-three thousand, four hundred fifty-six".