49011318 has 80 divisors (see below), whose sum is σ = 115625664. Its totient is φ = 15500160.

The previous prime is 49011307. The next prime is 49011331. The reversal of 49011318 is 81311094.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 49011291 and 49011300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 312096 + ... + 312252.

Almost surely, 2^49011318 is an apocalyptic number.

49011318 is the 4428-th heptagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49011318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57812832).

49011318 is an abundant number, since it is smaller than the sum of its proper divisors (66614346).

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

49011318 is a wasteful number, since it uses less digits than its factorization.

49011318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 49011318 is about 7000.8083818942. The cubic root of 49011318 is about 365.9587429980.

The spelling of 49011318 in words is "forty-nine million, eleven thousand, three hundred eighteen".