4621221924 has 24 divisors (see below), whose sum is σ = 11763110688. Its totient is φ = 1400370240.

The previous prime is 4621221923. The next prime is 4621221961. The reversal of 4621221924 is 4291221264.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (4621221923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17504497 + ... + 17504760.

It is an arithmetic number, because the mean of its divisors is an integer number (490129612).

Almost surely, 2^4621221924 is an apocalyptic number.

4621221924 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4621221924 is an abundant number, since it is smaller than the sum of its proper divisors (7141888764).

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

4621221924 is a wasteful number, since it uses less digits than its factorization.

4621221924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35009275 (or 35009273 counting only the distinct ones).

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

The square root of 4621221924 is about 67979.5699015520. The cubic root of 4621221924 is about 1665.6571306168.

The spelling of 4621221924 in words is "four billion, six hundred twenty-one million, two hundred twenty-one thousand, nine hundred twenty-four".