49209318 has 12 divisors (see below), whose sum is σ = 106620228. Its totient is φ = 16403100.

The previous prime is 49209313. The next prime is 49209323. The reversal of 49209318 is 81390294.

It is an interprime number because it is at equal distance from previous prime (49209313) and next prime (49209323).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49209311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1366908 + ... + 1366943.

It is an arithmetic number, because the mean of its divisors is an integer number (8885019).

Almost surely, 2^49209318 is an apocalyptic number.

49209318 is an abundant number, since it is smaller than the sum of its proper divisors (57410910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49209318 is a wasteful number, since it uses less digits than its factorization.

49209318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733859 (or 2733856 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 49209318 is about 7014.9353525175. The cubic root of 49209318 is about 366.4508910437.

The spelling of 49209318 in words is "forty-nine million, two hundred nine thousand, three hundred eighteen".