1254728 has 8 divisors (see below), whose sum is σ = 2352630. Its totient is φ = 627360.

The previous prime is 1254689. The next prime is 1254731. The reversal of 1254728 is 8274521.

It can be written as a sum of positive squares in only one way, i.e., 643204 + 611524 = 802^2 + 782^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1254728.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78413 + ... + 78428.

2^1254728 is an apocalyptic number.

It is an amenable number.

1254728 is a deficient number, since it is larger than the sum of its proper divisors (1097902).

1254728 is a wasteful number, since it uses less digits than its factorization.

1254728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156847 (or 156843 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 1254728 is about 1120.1464190007. The cubic root of 1254728 is about 107.8573791871.

The spelling of 1254728 in words is "one million, two hundred fifty-four thousand, seven hundred twenty-eight".