3549730 has 8 divisors (see below), whose sum is σ = 6389532. Its totient is φ = 1419888.

The previous prime is 3549701. The next prime is 3549731. The reversal of 3549730 is 379453.

It can be written as a sum of positive squares in 2 ways, for example, as 3470769 + 78961 = 1863^2 + 281^2 .

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3549692 and 3549701.

It is not an unprimeable number, because it can be changed into a prime (3549731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177477 + ... + 177496.

Almost surely, 2^3549730 is an apocalyptic number.

3549730 is a deficient number, since it is larger than the sum of its proper divisors (2839802).

3549730 is a wasteful number, since it uses less digits than its factorization.

3549730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354980.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 3549730 is about 1884.0727162188. The cubic root of 3549730 is about 152.5451626518.

The spelling of 3549730 in words is "three million, five hundred forty-nine thousand, seven hundred thirty".