4809942 has 28 divisors (see below), whose sum is σ = 10820700. Its totient is φ = 1602828.

The previous prime is 4809941. The next prime is 4809943. The reversal of 4809942 is 2499084.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4809941) and next prime (4809943).

It is a super-3 number, since 3×4809942³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4809897 and 4809906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4809941) 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 13 ways as a sum of consecutive naturals, for example, 192 + ... + 3107.

Almost surely, 2^4809942 is an apocalyptic number.

4809942 is an abundant number, since it is smaller than the sum of its proper divisors (6010758).

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

4809942 is an equidigital number, since it uses as much as digits as its factorization.

4809942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319 (or 3304 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 4809942 is about 2193.1579970444. The cubic root of 4809942 is about 168.8029167379.

The spelling of 4809942 in words is "four million, eight hundred nine thousand, nine hundred forty-two".