42213912 has 32 divisors (see below), whose sum is σ = 113653680. Its totient is φ = 12988800.

The previous prime is 42213889. The next prime is 42213923. The reversal of 42213912 is 21931224.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67339 + ... + 67962.

Almost surely, 2^42213912 is an apocalyptic number.

It is an amenable number.

42213912 is an abundant number, since it is smaller than the sum of its proper divisors (71439768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42213912 is a wasteful number, since it uses less digits than its factorization.

42213912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135323 (or 135319 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 42213912 is about 6497.2234069639. The cubic root of 42213912 is about 348.1917954510.

The spelling of 42213912 in words is "forty-two million, two hundred thirteen thousand, nine hundred twelve".