2775492 has 48 divisors (see below), whose sum is σ = 7436800. Its totient is φ = 894240.

The previous prime is 2775469. The next prime is 2775499. The reversal of 2775492 is 2945772.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a d-powerful number, because it can be written as 2¹⁹ + 7 + 7⁵ + 5⁷ + 4³ + 9⁵ + 2²¹ .

It is not an unprimeable number, because it can be changed into a prime (2775499) 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, 2934 + ... + 3762.

2^2775492 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 2775492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3718400).

2775492 is an abundant number, since it is smaller than the sum of its proper divisors (4661308).

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

2775492 is a wasteful number, since it uses less digits than its factorization.

2775492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873 (or 865 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 2775492 is about 1665.9807922062. The cubic root of 2775492 is about 140.5335423097.

The spelling of 2775492 in words is "two million, seven hundred seventy-five thousand, four hundred ninety-two".