2421964836 has 18 divisors (see below), whose sum is σ = 6122188982. Its totient is φ = 807321600.

The previous prime is 2421964829. The next prime is 2421964847. The reversal of 2421964836 is 6384691242.

It can be written as a sum of positive squares in only one way, i.e., 1970827236 + 451137600 = 44394^2 + 21240^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 2421964791 and 2421964800.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33638365 + ... + 33638436.

Almost surely, 2^2421964836 is an apocalyptic number.

It is an amenable number.

2421964836 is an abundant number, since it is smaller than the sum of its proper divisors (3700224146).

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

2421964836 is a wasteful number, since it uses less digits than its factorization.

2421964836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67276811 (or 67276806 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 2421964836 is about 49213.4619387826. The cubic root of 2421964836 is about 1342.9379431150.

The spelling of 2421964836 in words is "two billion, four hundred twenty-one million, nine hundred sixty-four thousand, eight hundred thirty-six".