49099819 has 8 divisors (see below), whose sum is σ = 52784640. Its totient is φ = 45525096.

The previous prime is 49099801. The next prime is 49099823. The reversal of 49099819 is 91899094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49099819 - 2⁹ = 49099307 is a prime.

It is a super-2 number, since 2×49099819² = 4821584451665522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49099849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26599 + ... + 28384.

It is an arithmetic number, because the mean of its divisors is an integer number (6598080).

Almost surely, 2^49099819 is an apocalyptic number.

49099819 is a deficient number, since it is larger than the sum of its proper divisors (3684821).

49099819 is a wasteful number, since it uses less digits than its factorization.

49099819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55049.

The product of its (nonzero) digits is 209952, while the sum is 49.

The square root of 49099819 is about 7007.1263011309. The cubic root of 49099819 is about 366.1788842574.

It can be divided in two parts, 4909 and 9819, that multiplied together give a triangular number (48201471 = T₉₈₁₈).

The spelling of 49099819 in words is "forty-nine million, ninety-nine thousand, eight hundred nineteen".