2772990 has 48 divisors (see below), whose sum is σ = 7868016. Its totient is φ = 672000.

The previous prime is 2772977. The next prime is 2772997. The reversal of 2772990 is 992772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 411 + ... + 2390.

It is an arithmetic number, because the mean of its divisors is an integer number (163917).

2^2772990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2772990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3934008).

2772990 is an abundant number, since it is smaller than the sum of its proper divisors (5095026).

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

2772990 is a wasteful number, since it uses less digits than its factorization.

2772990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825 (or 2822 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 2772990 is about 1665.2297138833. The cubic root of 2772990 is about 140.4913010745.

The spelling of 2772990 in words is "two million, seven hundred seventy-two thousand, nine hundred ninety".