42405130 has 8 divisors (see below), whose sum is σ = 76329252. Its totient is φ = 16962048.

The previous prime is 42405127. The next prime is 42405137. The reversal of 42405130 is 3150424.

It can be written as a sum of positive squares in 2 ways, for example, as 42263001 + 142129 = 6501^2 + 377^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 42405098 and 42405107.

It is not an unprimeable number, because it can be changed into a prime (42405137) 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, 2120247 + ... + 2120266.

Almost surely, 2^42405130 is an apocalyptic number.

42405130 is a deficient number, since it is larger than the sum of its proper divisors (33924122).

42405130 is a wasteful number, since it uses less digits than its factorization.

42405130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240520.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42405130 is about 6511.9221432692. The cubic root of 42405130 is about 348.7167429308.

Adding to 42405130 its reverse (3150424), we get a palindrome (45555554).

The spelling of 42405130 in words is "forty-two million, four hundred five thousand, one hundred thirty".