4909021964 has 24 divisors (see below), whose sum is σ = 10710594048. Its totient is φ = 1912605840.

The previous prime is 4909021927. The next prime is 4909021967. The reversal of 4909021964 is 4691209094.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (4909021967) 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, 7968884 + ... + 7969499.

It is an arithmetic number, because the mean of its divisors is an integer number (446274752).

Almost surely, 2^4909021964 is an apocalyptic number.

4909021964 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4909021964 is an abundant number, since it is smaller than the sum of its proper divisors (5801572084).

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

4909021964 is a wasteful number, since it uses less digits than its factorization.

4909021964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15938405 (or 15938403 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 4909021964 is about 70064.4129640719. The cubic root of 4909021964 is about 1699.5410484256.

The spelling of 4909021964 in words is "four billion, nine hundred nine million, twenty-one thousand, nine hundred sixty-four".