2774628 has 48 divisors (see below), whose sum is σ = 7512960. Its totient is φ = 883872.

The previous prime is 2774623. The next prime is 2774669. The reversal of 2774628 is 8264772.

2774628 is a `hidden beast` number, since 27 + 7 + 4 + 628 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2774592 and 2774601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1926 + ... + 3042.

It is an arithmetic number, because the mean of its divisors is an integer number (156520).

2^2774628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2774628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3756480).

2774628 is an abundant number, since it is smaller than the sum of its proper divisors (4738332).

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

2774628 is a wasteful number, since it uses less digits than its factorization.

2774628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1145 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 2774628 is about 1665.7214653117. The cubic root of 2774628 is about 140.5189582790.

The spelling of 2774628 in words is "two million, seven hundred seventy-four thousand, six hundred twenty-eight".