49198069 has 4 divisors (see below), whose sum is σ = 49212940. Its totient is φ = 49183200.

The previous prime is 49198027. The next prime is 49198103. The reversal of 49198069 is 96089194.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 31024900 + 18173169 = 5570^2 + 4263^2 .

It is a cyclic number.

It is not a de Polignac number, because 49198069 - 2⁹ = 49197557 is a prime.

It is a super-2 number, since 2×49198069² = 4840899986657522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49198169) 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, 19 + ... + 9919.

It is an arithmetic number, because the mean of its divisors is an integer number (12303235).

Almost surely, 2^49198069 is an apocalyptic number.

It is an amenable number.

49198069 is a deficient number, since it is larger than the sum of its proper divisors (14871).

49198069 is an equidigital number, since it uses as much as digits as its factorization.

49198069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14870.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 49198069 is about 7014.1335174061. The cubic root of 49198069 is about 366.4229659786.

The spelling of 49198069 in words is "forty-nine million, one hundred ninety-eight thousand, sixty-nine".