2981854 has 8 divisors (see below), whose sum is σ = 4486320. Its totient is φ = 1486416.

The previous prime is 2981837. The next prime is 2981857. The reversal of 2981854 is 4581892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2981854³ = 79539046562333471592, which contains 333 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1359 + ... + 2794.

It is an arithmetic number, because the mean of its divisors is an integer number (560790).

2^2981854 is an apocalyptic number.

2981854 is a deficient number, since it is larger than the sum of its proper divisors (1504466).

2981854 is a wasteful number, since it uses less digits than its factorization.

2981854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514.

The product of its digits is 23040, while the sum is 37.

The square root of 2981854 is about 1726.8045633482. The cubic root of 2981854 is about 143.9335791928.

It can be divided in two parts, 298185 and 4, that multiplied together give a triangular number (1192740 = T₁₅₄₄).

The spelling of 2981854 in words is "two million, nine hundred eighty-one thousand, eight hundred fifty-four".