49205844 has 18 divisors (see below), whose sum is σ = 124381530. Its totient is φ = 16401936.

The previous prime is 49205813. The next prime is 49205857. The reversal of 49205844 is 44850294.

It can be written as a sum of positive squares in only one way, i.e., 48860100 + 345744 = 6990^2 + 588^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1366829 = 49205844 / (4 + 9 + 2 + 0 + 5 + 8 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 49205799 and 49205808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 683379 + ... + 683450.

It is an arithmetic number, because the mean of its divisors is an integer number (6910085).

Almost surely, 2^49205844 is an apocalyptic number.

It is an amenable number.

49205844 is an abundant number, since it is smaller than the sum of its proper divisors (75175686).

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

49205844 is a wasteful number, since it uses less digits than its factorization.

49205844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366839 (or 1366834 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 49205844 is about 7014.6877336058. The cubic root of 49205844 is about 366.4422674712.

The spelling of 49205844 in words is "forty-nine million, two hundred five thousand, eight hundred forty-four".