2779254450 has 384 divisors, whose sum is σ = 9627955200. Its totient is φ = 574801920.

The previous prime is 2779254433. The next prime is 2779254451. The reversal of 2779254450 is 544529772.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 2779254396 and 2779254405.

It is not an unprimeable number, because it can be changed into a prime (2779254451) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4129314 + ... + 4129986.

It is an arithmetic number, because the mean of its divisors is an integer number (25072800).

Almost surely, 2^2779254450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2779254450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4813977600).

2779254450 is an abundant number, since it is smaller than the sum of its proper divisors (6848700750).

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

2779254450 is a wasteful number, since it uses less digits than its factorization.

2779254450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 2779254450 is about 52718.6347509114. The cubic root of 2779254450 is about 1405.9701594272.

The spelling of 2779254450 in words is "two billion, seven hundred seventy-nine million, two hundred fifty-four thousand, four hundred fifty".