213241378 has 16 divisors (see below), whose sum is σ = 366520320. Its totient is φ = 91148256.

The previous prime is 213241373. The next prime is 213241409. The reversal of 213241378 is 873142312.

213241378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213241373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14523 + ... + 25246.

It is an arithmetic number, because the mean of its divisors is an integer number (22907520).

Almost surely, 2^213241378 is an apocalyptic number.

213241378 is a deficient number, since it is larger than the sum of its proper divisors (153278942).

213241378 is a wasteful number, since it uses less digits than its factorization.

213241378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40161.

The product of its digits is 8064, while the sum is 31.

The square root of 213241378 is about 14602.7866518689. The cubic root of 213241378 is about 597.4347686471.

The spelling of 213241378 in words is "two hundred thirteen million, two hundred forty-one thousand, three hundred seventy-eight".