2445324021 has 12 divisors (see below), whose sum is σ = 4036725472. Its totient is φ = 1397327976.

The previous prime is 2445323999. The next prime is 2445324023. The reversal of 2445324021 is 1204235442.

2445324021 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2445324021 - 2¹⁷ = 2445192949 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 (2445324023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19407271 + ... + 19407396.

Almost surely, 2^2445324021 is an apocalyptic number.

2445324021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2445324021 is a deficient number, since it is larger than the sum of its proper divisors (1591401451).

2445324021 is a wasteful number, since it uses less digits than its factorization.

2445324021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38814680 (or 38814677 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2445324021 is about 49450.2176031613. The cubic root of 2445324021 is about 1347.2415593158.

Adding to 2445324021 its reverse (1204235442), we get a palindrome (3649559463).

The spelling of 2445324021 in words is "two billion, four hundred forty-five million, three hundred twenty-four thousand, twenty-one".