4549942 has 4 divisors (see below), whose sum is σ = 6824916. Its totient is φ = 2274970.

The previous prime is 4549939. The next prime is 4549943. The reversal of 4549942 is 2499454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2499454 = 2 ⋅1249727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4549943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1137484 + ... + 1137487.

It is an arithmetic number, because the mean of its divisors is an integer number (1706229).

Almost surely, 2^4549942 is an apocalyptic number.

4549942 is a deficient number, since it is larger than the sum of its proper divisors (2274974).

4549942 is a wasteful number, since it uses less digits than its factorization.

4549942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274973.

The product of its digits is 51840, while the sum is 37.

The square root of 4549942 is about 2133.0593053171. The cubic root of 4549942 is about 165.7048755344.

The spelling of 4549942 in words is "four million, five hundred forty-nine thousand, nine hundred forty-two".