2400246221 has 8 divisors (see below), whose sum is σ = 2422538304. Its totient is φ = 2377972800.

The previous prime is 2400246217. The next prime is 2400246223. The reversal of 2400246221 is 1226420042.

2400246221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2400246221 - 2² = 2400246217 is a prime.

It is a super-2 number, since 2×2400246221² = 11522363842849561682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400246223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513746 + ... + 518396.

It is an arithmetic number, because the mean of its divisors is an integer number (302817288).

Almost surely, 2^2400246221 is an apocalyptic number.

It is an amenable number.

2400246221 is a deficient number, since it is larger than the sum of its proper divisors (22292083).

2400246221 is a wasteful number, since it uses less digits than its factorization.

2400246221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9331.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2400246221 is about 48992.3077737720. The cubic root of 2400246221 is about 1338.9116842793.

Adding to 2400246221 its reverse (1226420042), we get a palindrome (3626666263).

The spelling of 2400246221 in words is "two billion, four hundred million, two hundred forty-six thousand, two hundred twenty-one".