2772390 has 16 divisors (see below), whose sum is σ = 6653808. Its totient is φ = 739296.

The previous prime is 2772383. The next prime is 2772391. The reversal of 2772390 is 932772.

2772390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2772390² = 15372292624200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 92413 = 2772390 / (2 + 7 + 7 + 2 + 3 + 9 + 0).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46177 + ... + 46236.

It is an arithmetic number, because the mean of its divisors is an integer number (415863).

2^2772390 is an apocalyptic number.

2772390 is an abundant number, since it is smaller than the sum of its proper divisors (3881418).

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

2772390 is a wasteful number, since it uses less digits than its factorization.

2772390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92423.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 2772390 is about 1665.0495488123. The cubic root of 2772390 is about 140.4811675049.

The spelling of 2772390 in words is "two million, seven hundred seventy-two thousand, three hundred ninety".