42405410 has 8 divisors (see below), whose sum is σ = 76329756. Its totient is φ = 16962160.

The previous prime is 42405379. The next prime is 42405413. The reversal of 42405410 is 1450424.

It can be written as a sum of positive squares in 2 ways, for example, as 37613689 + 4791721 = 6133^2 + 2189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (42405413) 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, 2120261 + ... + 2120280.

Almost surely, 2^42405410 is an apocalyptic number.

42405410 is a deficient number, since it is larger than the sum of its proper divisors (33924346).

42405410 is a wasteful number, since it uses less digits than its factorization.

42405410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240548.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42405410 is about 6511.9436422623. The cubic root of 42405410 is about 348.7175104517.

Adding to 42405410 its reverse (1450424), we get a palindrome (43855834).

The spelling of 42405410 in words is "forty-two million, four hundred five thousand, four hundred ten".