42261236 has 12 divisors (see below), whose sum is σ = 76507620. Its totient is φ = 20401920.

The previous prime is 42261229. The next prime is 42261341. The reversal of 42261236 is 63216224.

42261236 is nontrivially palindromic in base 3.

42261236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 22848400 + 19412836 = 4780^2 + 4406^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182045 + ... + 182276.

It is an arithmetic number, because the mean of its divisors is an integer number (6375635).

Almost surely, 2^42261236 is an apocalyptic number.

It is an amenable number.

42261236 is a deficient number, since it is larger than the sum of its proper divisors (34246384).

42261236 is a wasteful number, since it uses less digits than its factorization.

42261236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364354 (or 364352 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 42261236 is about 6500.8642502363. The cubic root of 42261236 is about 348.3218605889.

The spelling of 42261236 in words is "forty-two million, two hundred sixty-one thousand, two hundred thirty-six".