42621301 has 4 divisors (see below), whose sum is σ = 42907500. Its totient is φ = 42335104.

The previous prime is 42621287. The next prime is 42621307. The reversal of 42621301 is 10312624.

42621301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24354225 + 18267076 = 4935^2 + 4274^2 .

It is a cyclic number.

It is not a de Polignac number, because 42621301 - 2²¹ = 40524149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42621307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142876 + ... + 143173.

It is an arithmetic number, because the mean of its divisors is an integer number (10726875).

Almost surely, 2^42621301 is an apocalyptic number.

It is an amenable number.

42621301 is a deficient number, since it is larger than the sum of its proper divisors (286199).

42621301 is a wasteful number, since it uses less digits than its factorization.

42621301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286198.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 42621301 is about 6528.4991383931. The cubic root of 42621301 is about 349.3082964748.

Adding to 42621301 its reverse (10312624), we get a palindrome (52933925).

The spelling of 42621301 in words is "forty-two million, six hundred twenty-one thousand, three hundred one".