213347042 has 16 divisors (see below), whose sum is σ = 339214392. Its totient is φ = 100289280.

The previous prime is 213347041. The next prime is 213347063. The reversal of 213347042 is 240743312.

It can be written as a sum of positive squares in 4 ways, for example, as 211731601 + 1615441 = 14551^2 + 1271^2 .

It is not an unprimeable number, because it can be changed into a prime (213347041) 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, 34292 + ... + 40032.

Almost surely, 2^213347042 is an apocalyptic number.

213347042 is a deficient number, since it is larger than the sum of its proper divisors (125867350).

213347042 is a wasteful number, since it uses less digits than its factorization.

213347042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 213347042 is about 14606.4041433886. The cubic root of 213347042 is about 597.5334313676.

The spelling of 213347042 in words is "two hundred thirteen million, three hundred forty-seven thousand, forty-two".