49290318 has 144 divisors (see below), whose sum is σ = 138928608. Its totient is φ = 12355200.

The previous prime is 49290281. The next prime is 49290347. The reversal of 49290318 is 81309294.

It is a super-2 number, since 2×49290318² = 4859070897082248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 808008 + ... + 808068.

It is an arithmetic number, because the mean of its divisors is an integer number (964782).

Almost surely, 2^49290318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49290318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69464304).

49290318 is an abundant number, since it is smaller than the sum of its proper divisors (89638290).

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

49290318 is a wasteful number, since it uses less digits than its factorization.

49290318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 137 counting only the distinct ones).

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

The square root of 49290318 is about 7020.7063747176. The cubic root of 49290318 is about 366.6518438452.

The spelling of 49290318 in words is "forty-nine million, two hundred ninety thousand, three hundred eighteen".