2491892 has 24 divisors (see below), whose sum is σ = 4740456. Its totient is φ = 1139328.

The previous prime is 2491891. The next prime is 2491903. The reversal of 2491892 is 2981942.

It can be written as a sum of positive squares in 4 ways, for example, as 163216 + 2328676 = 404^2 + 1526^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8858 + ... + 9134.

It is an arithmetic number, because the mean of its divisors is an integer number (197519).

2^2491892 is an apocalyptic number.

It is an amenable number.

2491892 is a deficient number, since it is larger than the sum of its proper divisors (2248564).

2491892 is a wasteful number, since it uses less digits than its factorization.

2491892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 465 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 2491892 is about 1578.5727731087. The cubic root of 2491892 is about 135.5739986054.

The spelling of 2491892 in words is "two million, four hundred ninety-one thousand, eight hundred ninety-two".