49812 has 24 divisors (see below), whose sum is σ = 133056. Its totient is φ = 14208.

The previous prime is 49811. The next prime is 49823. The reversal of 49812 is 21894.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213 + ... + 380.

It is an arithmetic number, because the mean of its divisors is an integer number (5544).

2⁴⁹⁸¹² is an apocalyptic number.

49812 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

49812 is an abundant number, since it is smaller than the sum of its proper divisors (83244).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66528).

49812 is a wasteful number, since it uses less digits than its factorization.

49812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607 (or 605 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 49812 is about 223.1860210676. The cubic root of 49812 is about 36.7940838000.

It can be divided in two parts, 49 and 812, that added together give a triangular number (861 = T₄₁).

The spelling of 49812 in words is "forty-nine thousand, eight hundred twelve".