49111992 has 96 divisors (see below), whose sum is σ = 141972480. Its totient is φ = 15301440.

The previous prime is 49111981. The next prime is 49112003. The reversal of 49111992 is 29911194.

It is an interprime number because it is at equal distance from previous prime (49111981) and next prime (49112003).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77517 + ... + 78147.

It is an arithmetic number, because the mean of its divisors is an integer number (1478880).

Almost surely, 2^49111992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49111992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70986240).

49111992 is an abundant number, since it is smaller than the sum of its proper divisors (92860488).

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

49111992 is a wasteful number, since it uses less digits than its factorization.

49111992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 706 counting only the distinct ones).

The product of its digits is 5832, while the sum is 36.

The square root of 49111992 is about 7007.9948630118. The cubic root of 49111992 is about 366.2091432096.

It can be divided in two parts, 4911 and 1992, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 49111992 in words is "forty-nine million, one hundred eleven thousand, nine hundred ninety-two".