49419009 has 6 divisors (see below), whose sum is σ = 71383026. Its totient is φ = 32946000.

The previous prime is 49418959. The next prime is 49419011. The reversal of 49419009 is 90091494.

It can be written as a sum of positive squares in only one way, i.e., 30470400 + 18948609 = 5520^2 + 4353^2 .

It is not a de Polignac number, because 49419009 - 2¹⁷ = 49287937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49419059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2745492 + ... + 2745509.

It is an arithmetic number, because the mean of its divisors is an integer number (11897171).

Almost surely, 2^49419009 is an apocalyptic number.

It is an amenable number.

49419009 is a deficient number, since it is larger than the sum of its proper divisors (21964017).

49419009 is a wasteful number, since it uses less digits than its factorization.

49419009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491007 (or 5491004 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 49419009 is about 7029.8655036921. The cubic root of 49419009 is about 366.9706609357.

It can be divided in two parts, 494 and 19009, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 49419009 in words is "forty-nine million, four hundred nineteen thousand, nine".