213376449 has 48 divisors (see below), whose sum is σ = 343465920. Its totient is φ = 116161920.

The previous prime is 213376433. The next prime is 213376481. The reversal of 213376449 is 944673312.

It is not a de Polignac number, because 213376449 - 2⁴ = 213376433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213376249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 793087 + ... + 793355.

It is an arithmetic number, because the mean of its divisors is an integer number (7155540).

Almost surely, 2^213376449 is an apocalyptic number.

It is an amenable number.

213376449 is a deficient number, since it is larger than the sum of its proper divisors (130089471).

213376449 is a wasteful number, since it uses less digits than its factorization.

213376449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 339 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 213376449 is about 14607.4107561881. The cubic root of 213376449 is about 597.5608840697.

The spelling of 213376449 in words is "two hundred thirteen million, three hundred seventy-six thousand, four hundred forty-nine".