2400550221 has 8 divisors (see below), whose sum is σ = 3211026624. Its totient is φ = 1595220320.

The previous prime is 2400550219. The next prime is 2400550259. The reversal of 2400550221 is 1220550042.

It is a happy number.

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 2400550221 - 2¹ = 2400550219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400550261) 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, 1285536 + ... + 1287401.

It is an arithmetic number, because the mean of its divisors is an integer number (401378328).

Almost surely, 2^2400550221 is an apocalyptic number.

It is an amenable number.

2400550221 is a deficient number, since it is larger than the sum of its proper divisors (810476403).

2400550221 is a wasteful number, since it uses less digits than its factorization.

2400550221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573251.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2400550221 is about 48995.4102034058. The cubic root of 2400550221 is about 1338.9682079207.

The spelling of 2400550221 in words is "two billion, four hundred million, five hundred fifty thousand, two hundred twenty-one".