49015218 has 32 divisors (see below), whose sum is σ = 112250880. Its totient is φ = 13977360.

The previous prime is 49015217. The next prime is 49015223. The reversal of 49015218 is 81251094.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49015217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33343 + ... + 34781.

It is an arithmetic number, because the mean of its divisors is an integer number (3507840).

Almost surely, 2^49015218 is an apocalyptic number.

49015218 is an abundant number, since it is smaller than the sum of its proper divisors (63235662).

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

49015218 is a wasteful number, since it uses less digits than its factorization.

49015218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 49015218 is about 7001.0869156153. The cubic root of 49015218 is about 365.9684496080.

The spelling of 49015218 in words is "forty-nine million, fifteen thousand, two hundred eighteen".