1272448 has 16 divisors (see below), whose sum is σ = 2535210. Its totient is φ = 636160.

The previous prime is 1272443. The next prime is 1272451. The reversal of 1272448 is 8442721.

It can be written as a sum of positive squares in only one way, i.e., 1272384 + 64 = 1128^2 + 8^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (1272443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4843 + ... + 5098.

2^1272448 is an apocalyptic number.

It is an amenable number.

1272448 is a deficient number, since it is larger than the sum of its proper divisors (1262762).

1272448 is an frugal number, since it uses more digits than its factorization.

1272448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9955 (or 9943 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 1272448 is about 1128.0283684376. The cubic root of 1272448 is about 108.3627491454.

The spelling of 1272448 in words is "one million, two hundred seventy-two thousand, four hundred forty-eight".