42520034 has 32 divisors (see below), whose sum is σ = 69189120. Its totient is φ = 19555200.

The previous prime is 42520021. The next prime is 42520039. The reversal of 42520034 is 43002524.

It is a super-2 number, since 2×42520034² = 3615906582722312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42519988 and 42520015.

It is not an unprimeable number, because it can be changed into a prime (42520039) 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, 109112 + ... + 109500.

It is an arithmetic number, because the mean of its divisors is an integer number (2162160).

Almost surely, 2^42520034 is an apocalyptic number.

42520034 is a deficient number, since it is larger than the sum of its proper divisors (26669086).

42520034 is a wasteful number, since it uses less digits than its factorization.

42520034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42520034 is about 6520.7387618275. The cubic root of 42520034 is about 349.0314282198.

Adding to 42520034 its reverse (43002524), we get a palindrome (85522558).

The spelling of 42520034 in words is "forty-two million, five hundred twenty thousand, thirty-four".