4549690 has 8 divisors (see below), whose sum is σ = 8189460. Its totient is φ = 1819872.

The previous prime is 4549687. The next prime is 4549691. The reversal of 4549690 is 969454.

It is a Cunningham number, because it is equal to 2133²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 4549689 + 1 = 2133^2 + 1^2 .

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

It is a super-2 number, since 2×4549690² = 41399358192200, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (4549691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227475 + ... + 227494.

Almost surely, 2^4549690 is an apocalyptic number.

4549690 is a deficient number, since it is larger than the sum of its proper divisors (3639770).

4549690 is a wasteful number, since it uses less digits than its factorization.

4549690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454976.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 4549690 is about 2133.0002344116. Note that the first 3 decimals coincide. The cubic root of 4549690 is about 165.7018162720.

The spelling of 4549690 in words is "four million, five hundred forty-nine thousand, six hundred ninety".