42020310 has 32 divisors (see below), whose sum is σ = 105235200. Its totient is φ = 10718048.

The previous prime is 42020309. The next prime is 42020317. The reversal of 42020310 is 1302024.

It is a super-2 number, since 2×42020310² = 3531412904992200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42020317) 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, 29760 + ... + 31139.

It is an arithmetic number, because the mean of its divisors is an integer number (3288600).

Almost surely, 2^42020310 is an apocalyptic number.

42020310 is an abundant number, since it is smaller than the sum of its proper divisors (63214890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42020310 is a wasteful number, since it uses less digits than its factorization.

42020310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60932.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 42020310 is about 6482.3074595394. The cubic root of 42020310 is about 347.6586856985.

Adding to 42020310 its reverse (1302024), we get a palindrome (43322334).

The spelling of 42020310 in words is "forty-two million, twenty thousand, three hundred ten".