2492181 has 16 divisors (see below), whose sum is σ = 3717120. Its totient is φ = 1650240.

The previous prime is 2492159. The next prime is 2492197. The reversal of 2492181 is 1812942.

It is not a de Polignac number, because 2492181 - 2⁶ = 2492117 is a prime.

It is a super-2 number, since 2×2492181² = 12421932273522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2492111) 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, 6316 + ... + 6698.

It is an arithmetic number, because the mean of its divisors is an integer number (232320).

2^2492181 is an apocalyptic number.

It is an amenable number.

2492181 is a deficient number, since it is larger than the sum of its proper divisors (1224939).

2492181 is a wasteful number, since it uses less digits than its factorization.

2492181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 627 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 2492181 is about 1578.6643088383. The cubic root of 2492181 is about 135.5792395189.

The spelling of 2492181 in words is "two million, four hundred ninety-two thousand, one hundred eighty-one".