42013630 has 32 divisors (see below), whose sum is σ = 81601344. Its totient is φ = 15515136.

The previous prime is 42013619. The next prime is 42013639. The reversal of 42013630 is 3631024.

It is a junction number, because it is equal to n+sod(n) for n = 42013598 and 42013607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42013639) 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, 6679 + ... + 11341.

It is an arithmetic number, because the mean of its divisors is an integer number (2550042).

Almost surely, 2^42013630 is an apocalyptic number.

42013630 is a deficient number, since it is larger than the sum of its proper divisors (39587714).

42013630 is a wasteful number, since it uses less digits than its factorization.

42013630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 42013630 is about 6481.7921904362. The cubic root of 42013630 is about 347.6402622021.

Adding to 42013630 its reverse (3631024), we get a palindrome (45644654).

The spelling of 42013630 in words is "forty-two million, thirteen thousand, six hundred thirty".