2780492 has 24 divisors (see below), whose sum is σ = 5717712. Its totient is φ = 1166400.

The previous prime is 2780467. The next prime is 2780501. The reversal of 2780492 is 2940872.

2780492 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 2×2780492² = 15462271524128, which contains 22 as substring.

It is an unprimeable number.

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, 1859 + ... + 3002.

It is an arithmetic number, because the mean of its divisors is an integer number (238238).

2^2780492 is an apocalyptic number.

2780492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2780492 is an abundant number, since it is smaller than the sum of its proper divisors (2937220).

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

2780492 is a wasteful number, since it uses less digits than its factorization.

2780492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889 (or 4887 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2780492 is about 1667.4807345214. The cubic root of 2780492 is about 140.6178812528.

The spelling of 2780492 in words is "two million, seven hundred eighty thousand, four hundred ninety-two".