3549942 has 24 divisors (see below), whose sum is σ = 8391240. Its totient is φ = 1075680.

The previous prime is 3549913. The next prime is 3549947. The reversal of 3549942 is 2499453.

It is a d-powerful number, because it can be written as 3¹³ + 5⁹ + 4 + 9³ + 9³ + 4⁵ + 2³ .

It is a junction number, because it is equal to n+sod(n) for n = 3549897 and 3549906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3549947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8767 + ... + 9162.

It is an arithmetic number, because the mean of its divisors is an integer number (349635).

Almost surely, 2^3549942 is an apocalyptic number.

3549942 is an abundant number, since it is smaller than the sum of its proper divisors (4841298).

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

3549942 is a wasteful number, since it uses less digits than its factorization.

3549942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17948 (or 17945 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 3549942 is about 1884.1289764769. The cubic root of 3549942 is about 152.5481994021.

It can be divided in two parts, 354 and 9942, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 3549942 in words is "three million, five hundred forty-nine thousand, nine hundred forty-two".