2738644420 has 24 divisors (see below), whose sum is σ = 6053846400. Its totient is φ = 1037801952.

The previous prime is 2738644417. The next prime is 2738644481. The reversal of 2738644420 is 244468372.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3603100 + ... + 3603859.

It is an arithmetic number, because the mean of its divisors is an integer number (252243600).

Almost surely, 2^2738644420 is an apocalyptic number.

2738644420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2738644420 is an abundant number, since it is smaller than the sum of its proper divisors (3315201980).

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

2738644420 is a wasteful number, since it uses less digits than its factorization.

2738644420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7206987 (or 7206985 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 40.

The square root of 2738644420 is about 52332.0591989270. The cubic root of 2738644420 is about 1399.0885938742.

The spelling of 2738644420 in words is "two billion, seven hundred thirty-eight million, six hundred forty-four thousand, four hundred twenty".