1448702640 has 360 divisors, whose sum is σ = 6175707408. Its totient is φ = 300948480.

The previous prime is 1448702623. The next prime is 1448702653. The reversal of 1448702640 is 462078441.

1448702640 is a `hidden beast` number, since 1 + 4 + 4 + 8 + 7 + 0 + 2 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1448702595 and 1448702604.

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, 386214 + ... + 389946.

Almost surely, 2^1448702640 is an apocalyptic number.

1448702640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1448702640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3087853704).

1448702640 is an abundant number, since it is smaller than the sum of its proper divisors (4727004768).

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

1448702640 is a wasteful number, since it uses less digits than its factorization.

1448702640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777 (or 3761 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 1448702640 is about 38061.8265457663. The cubic root of 1448702640 is about 1131.5135277717.

The spelling of 1448702640 in words is "one billion, four hundred forty-eight million, seven hundred two thousand, six hundred forty".