2049777408 has 108 divisors (see below), whose sum is σ = 6346190760. Its totient is φ = 585639936.

The previous prime is 2049777403. The next prime is 2049777409. The reversal of 2049777408 is 8047779402.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2049777403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10398 + ... + 64866.

Almost surely, 2^2049777408 is an apocalyptic number.

2049777408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2049777408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3173095380).

2049777408 is an abundant number, since it is smaller than the sum of its proper divisors (4296413352).

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

2049777408 is an equidigital number, since it uses as much as digits as its factorization.

2049777408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54502 (or 54481 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 48.

The square root of 2049777408 is about 45274.4675065318. The cubic root of 2049777408 is about 1270.2881128633.

The spelling of 2049777408 in words is "two billion, forty-nine million, seven hundred seventy-seven thousand, four hundred eight".