49142836 has 6 divisors (see below), whose sum is σ = 85999970. Its totient is φ = 24571416.

The previous prime is 49142833. The next prime is 49142837. The reversal of 49142836 is 63824194.

It can be written as a sum of positive squares in only one way, i.e., 48385936 + 756900 = 6956^2 + 870^2 .

It is a junction number, because it is equal to n+sod(n) for n = 49142795 and 49142804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49142831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6142851 + ... + 6142858.

Almost surely, 2^49142836 is an apocalyptic number.

It is an amenable number.

49142836 is a deficient number, since it is larger than the sum of its proper divisors (36857134).

49142836 is a wasteful number, since it uses less digits than its factorization.

49142836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12285713 (or 12285711 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 49142836 is about 7010.1951470697. The cubic root of 49142836 is about 366.2857910951.

It can be divided in two parts, 4914 and 2836, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 49142836 in words is "forty-nine million, one hundred forty-two thousand, eight hundred thirty-six".