42144308 has 12 divisors (see below), whose sum is σ = 76295940. Its totient is φ = 20345472.

The previous prime is 42144307. The next prime is 42144331. The reversal of 42144308 is 80344124.

It can be written as a sum of positive squares in 2 ways, for example, as 30228004 + 11916304 = 5498^2 + 3452^2 .

It is a super-2 number, since 2×42144308² = 3552285393597728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42144301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181541 + ... + 181772.

It is an arithmetic number, because the mean of its divisors is an integer number (6357995).

Almost surely, 2^42144308 is an apocalyptic number.

It is an amenable number.

42144308 is a deficient number, since it is larger than the sum of its proper divisors (34151632).

42144308 is a wasteful number, since it uses less digits than its factorization.

42144308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363346 (or 363344 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 42144308 is about 6491.8647552148. The cubic root of 42144308 is about 348.0003192845. Note that the first 3 decimals are identical.

The spelling of 42144308 in words is "forty-two million, one hundred forty-four thousand, three hundred eight".