2421220398 has 8 divisors (see below), whose sum is σ = 4842440808. Its totient is φ = 807073464.

The previous prime is 2421220397. The next prime is 2421220421. The reversal of 2421220398 is 8930221242.

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

2421220398 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421220397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201768361 + ... + 201768372.

It is an arithmetic number, because the mean of its divisors is an integer number (605305101).

Almost surely, 2^2421220398 is an apocalyptic number.

2421220398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2421220398 is a wasteful number, since it uses less digits than its factorization.

2421220398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403536738.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 2421220398 is about 49205.8980001382. The cubic root of 2421220398 is about 1342.8003363163.

The spelling of 2421220398 in words is "two billion, four hundred twenty-one million, two hundred twenty thousand, three hundred ninety-eight".