213403448 has 32 divisors (see below), whose sum is σ = 424355760. Its totient is φ = 100262400.

The previous prime is 213403441. The next prime is 213403451. The reversal of 213403448 is 844304312.

It is a self number, because there is not a number n which added to its sum of digits gives 213403448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213403441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142190 + ... + 143682.

Almost surely, 2^213403448 is an apocalyptic number.

It is an amenable number.

213403448 is a deficient number, since it is larger than the sum of its proper divisors (210952312).

213403448 is a wasteful number, since it uses less digits than its factorization.

213403448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567 (or 2563 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 213403448 is about 14608.3348811560. The cubic root of 213403448 is about 597.5860865791.

The spelling of 213403448 in words is "two hundred thirteen million, four hundred three thousand, four hundred forty-eight".