2949858 has 40 divisors (see below), whose sum is σ = 6708240. Its totient is φ = 968760.

The previous prime is 2949841. The next prime is 2949871. The reversal of 2949858 is 8589492.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21153 + ... + 21291.

It is an arithmetic number, because the mean of its divisors is an integer number (167706).

2^2949858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2949858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3354120).

2949858 is an abundant number, since it is smaller than the sum of its proper divisors (3758382).

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

2949858 is a wasteful number, since it uses less digits than its factorization.

2949858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 275 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 2949858 is about 1717.5150654361. The cubic root of 2949858 is about 143.4169129751.

The spelling of 2949858 in words is "two million, nine hundred forty-nine thousand, eight hundred fifty-eight".