49990043 has 4 divisors (see below), whose sum is σ = 50037120. Its totient is φ = 49942968.

The previous prime is 49989991. The next prime is 49990069. The reversal of 49990043 is 34009994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49990043 - 2²⁴ = 33212827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49989979 and 49990006.

It is not an unprimeable number, because it can be changed into a prime (49990943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21908 + ... + 24081.

It is an arithmetic number, because the mean of its divisors is an integer number (12509280).

Almost surely, 2^49990043 is an apocalyptic number.

49990043 is a deficient number, since it is larger than the sum of its proper divisors (47077).

49990043 is a wasteful number, since it uses less digits than its factorization.

49990043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47076.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 49990043 is about 7070.3637105880. The cubic root of 49990043 is about 368.3786936395.

The spelling of 49990043 in words is "forty-nine million, nine hundred ninety thousand, forty-three".