1449970218 has 72 divisors (see below), whose sum is σ = 3333646368. Its totient is φ = 455404464.

The previous prime is 1449970177. The next prime is 1449970229. The reversal of 1449970218 is 8120799441.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1474555 + ... + 1475537.

It is an arithmetic number, because the mean of its divisors is an integer number (46300644).

Almost surely, 2^1449970218 is an apocalyptic number.

1449970218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1449970218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1666823184).

1449970218 is an abundant number, since it is smaller than the sum of its proper divisors (1883676150).

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

1449970218 is a wasteful number, since it uses less digits than its factorization.

1449970218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256 (or 1234 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1449970218 is about 38078.4744704932. The cubic root of 1449970218 is about 1131.8434467622.

The spelling of 1449970218 in words is "one billion, four hundred forty-nine million, nine hundred seventy thousand, two hundred eighteen".