1448587644 has 48 divisors (see below), whose sum is σ = 3871918848. Its totient is φ = 412915968.

The previous prime is 1448587643. The next prime is 1448587681. The reversal of 1448587644 is 4467858441.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1448587643) 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, 16459 + ... + 56285.

It is an arithmetic number, because the mean of its divisors is an integer number (80664976).

Almost surely, 2^1448587644 is an apocalyptic number.

1448587644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1448587644 is an abundant number, since it is smaller than the sum of its proper divisors (2423331204).

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

1448587644 is a wasteful number, since it uses less digits than its factorization.

1448587644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40274 (or 40272 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 51.

The square root of 1448587644 is about 38060.3158683687. The cubic root of 1448587644 is about 1131.4835876563.

The spelling of 1448587644 in words is "one billion, four hundred forty-eight million, five hundred eighty-seven thousand, six hundred forty-four".