42969213 has 36 divisors (see below), whose sum is σ = 73554208. Its totient is φ = 23677920.

The previous prime is 42969191. The next prime is 42969257. The reversal of 42969213 is 31296924.

It is not a de Polignac number, because 42969213 - 2⁹ = 42968701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42969263) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 52578 + ... + 53388.

Almost surely, 2^42969213 is an apocalyptic number.

It is an amenable number.

42969213 is a deficient number, since it is larger than the sum of its proper divisors (30584995).

42969213 is a wasteful number, since it uses less digits than its factorization.

42969213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 850 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 42969213 is about 6555.0906172226. The cubic root of 42969213 is about 350.2561743582.

It can be divided in two parts, 4296921 and 3, that added together give a palindrome (4296924).

The spelling of 42969213 in words is "forty-two million, nine hundred sixty-nine thousand, two hundred thirteen".