2413728021 has 4 divisors (see below), whose sum is σ = 3218304032. Its totient is φ = 1609152012.

The previous prime is 2413728019. The next prime is 2413728043. The reversal of 2413728021 is 1208273142.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2413728021 - 2¹ = 2413728019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2413728021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2413728011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402288001 + ... + 402288006.

It is an arithmetic number, because the mean of its divisors is an integer number (804576008).

Almost surely, 2^2413728021 is an apocalyptic number.

It is an amenable number.

2413728021 is a deficient number, since it is larger than the sum of its proper divisors (804576011).

2413728021 is an equidigital number, since it uses as much as digits as its factorization.

2413728021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804576010.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2413728021 is about 49129.7060951926. The cubic root of 2413728021 is about 1341.4138231626.

The spelling of 2413728021 in words is "two billion, four hundred thirteen million, seven hundred twenty-eight thousand, twenty-one".