42410381 has 6 divisors (see below), whose sum is σ = 45923850. Its totient is φ = 39147888.

The previous prime is 42410377. The next prime is 42410411. The reversal of 42410381 is 18301424.

It can be written as a sum of positive squares in 3 ways, for example, as 872356 + 41538025 = 934^2 + 6445^2 .

It is not a de Polignac number, because 42410381 - 2² = 42410377 is a prime.

It is a super-2 number, since 2×42410381² = 3597280833130322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42410371) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 125306 + ... + 125643.

It is an arithmetic number, because the mean of its divisors is an integer number (7653975).

Almost surely, 2^42410381 is an apocalyptic number.

It is an amenable number.

42410381 is a deficient number, since it is larger than the sum of its proper divisors (3513469).

42410381 is a wasteful number, since it uses less digits than its factorization.

42410381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250975 (or 250962 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 42410381 is about 6512.3253143558. The cubic root of 42410381 is about 348.7311361268.

The spelling of 42410381 in words is "forty-two million, four hundred ten thousand, three hundred eighty-one".