42130465 has 16 divisors (see below), whose sum is σ = 54761616. Its totient is φ = 30931200.

The previous prime is 42130453. The next prime is 42130469. The reversal of 42130465 is 56403124.

It can be written as a sum of positive squares in 8 ways, for example, as 5841889 + 36288576 = 2417^2 + 6024^2 .

It is not a de Polignac number, because 42130465 - 2¹⁵ = 42097697 is a prime.

It is a super-2 number, since 2×42130465² = 3549952162232450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42130469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9975 + ... + 13555.

It is an arithmetic number, because the mean of its divisors is an integer number (3422601).

Almost surely, 2^42130465 is an apocalyptic number.

It is an amenable number.

42130465 is a deficient number, since it is larger than the sum of its proper divisors (12631151).

42130465 is a wasteful number, since it uses less digits than its factorization.

42130465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 42130465 is about 6490.7984870892. The cubic root of 42130465 is about 347.9622129447.

Adding to 42130465 its reverse (56403124), we get a palindrome (98533589).

The spelling of 42130465 in words is "forty-two million, one hundred thirty thousand, four hundred sixty-five".