10520042 has 16 divisors (see below), whose sum is σ = 17994312. Its totient is φ = 4569600.

The previous prime is 10520033. The next prime is 10520047. The reversal of 10520042 is 24002501.

It can be written as a sum of positive squares in 4 ways, for example, as 9541921 + 978121 = 3089^2 + 989^2 .

It is a super-2 number, since 2×10520042² = 221342567363528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10519999 and 10520026.

It is not an unprimeable number, because it can be changed into a prime (10520047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11459 + ... + 12342.

Almost surely, 2^10520042 is an apocalyptic number.

10520042 is a deficient number, since it is larger than the sum of its proper divisors (7474270).

10520042 is a wasteful number, since it uses less digits than its factorization.

10520042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23833.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 10520042 is about 3243.4614226163. The cubic root of 10520042 is about 219.1151927642.

Adding to 10520042 its reverse (24002501), we get a palindrome (34522543).

The spelling of 10520042 in words is "ten million, five hundred twenty thousand, forty-two".