1440448946 has 16 divisors (see below), whose sum is σ = 2234309184. Its totient is φ = 696085104.

The previous prime is 1440448939. The next prime is 1440448969. The reversal of 1440448946 is 6498440441.

It is a happy number.

It is a super-3 number, since 3×1440448946³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1440448897 and 1440448906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94310 + ... + 108513.

It is an arithmetic number, because the mean of its divisors is an integer number (139644324).

Almost surely, 2^1440448946 is an apocalyptic number.

1440448946 is a deficient number, since it is larger than the sum of its proper divisors (793860238).

1440448946 is a wasteful number, since it uses less digits than its factorization.

1440448946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202945.

The product of its (nonzero) digits is 442368, while the sum is 44.

The square root of 1440448946 is about 37953.2468439790. The cubic root of 1440448946 is about 1129.3605764528.

The spelling of 1440448946 in words is "one billion, four hundred forty million, four hundred forty-eight thousand, nine hundred forty-six".