42887812 has 36 divisors (see below), whose sum is σ = 83691216. Its totient is φ = 19071520.

The previous prime is 42887809. The next prime is 42887827. The reversal of 42887812 is 21878824.

It is a super-3 number, since 3×42887812³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123423 + ... + 123769.

It is an arithmetic number, because the mean of its divisors is an integer number (2324756).

Almost surely, 2^42887812 is an apocalyptic number.

It is an amenable number.

42887812 is a deficient number, since it is larger than the sum of its proper divisors (40803404).

42887812 is a wasteful number, since it uses less digits than its factorization.

42887812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 413 counting only the distinct ones).

The product of its digits is 57344, while the sum is 40.

The square root of 42887812 is about 6548.8786826448. The cubic root of 42887812 is about 350.0348591130.

It can be divided in two parts, 4288 and 7812, that added together give a square (12100 = 110²).

The spelling of 42887812 in words is "forty-two million, eight hundred eighty-seven thousand, eight hundred twelve".