2421941664 has 24 divisors (see below), whose sum is σ = 6357597120. Its totient is φ = 807313856.

The previous prime is 2421941663. The next prime is 2421941701. The reversal of 2421941664 is 4661491242.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (2421941663) 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, 12614184 + ... + 12614375.

It is an arithmetic number, because the mean of its divisors is an integer number (264899880).

Almost surely, 2^2421941664 is an apocalyptic number.

2421941664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2421941664 is an abundant number, since it is smaller than the sum of its proper divisors (3935655456).

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

2421941664 is a wasteful number, since it uses less digits than its factorization.

2421941664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25228572 (or 25228564 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 2421941664 is about 49213.2265148303. The cubic root of 2421941664 is about 1342.9336602759.

The spelling of 2421941664 in words is "two billion, four hundred twenty-one million, nine hundred forty-one thousand, six hundred sixty-four".