42213236 has 24 divisors (see below), whose sum is σ = 80385480. Its totient is φ = 19279872.

The previous prime is 42213233. The next prime is 42213271. The reversal of 42213236 is 63231224.

It can be written as a sum of positive squares in 4 ways, for example, as 3400336 + 38812900 = 1844^2 + 6230^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42213233) 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, 860 + ... + 9228.

It is an arithmetic number, because the mean of its divisors is an integer number (3349395).

Almost surely, 2^42213236 is an apocalyptic number.

It is an amenable number.

42213236 is a deficient number, since it is larger than the sum of its proper divisors (38172244).

42213236 is a wasteful number, since it uses less digits than its factorization.

42213236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8483 (or 8481 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 42213236 is about 6497.1713845334. The cubic root of 42213236 is about 348.1899368306.

The spelling of 42213236 in words is "forty-two million, two hundred thirteen thousand, two hundred thirty-six".