1225028 has 24 divisors (see below), whose sum is σ = 2490432. Its totient is φ = 516384.

The previous prime is 1225019. The next prime is 1225061. The reversal of 1225028 is 8205221.

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, 1550 + ... + 2202.

It is an arithmetic number, because the mean of its divisors is an integer number (103768).

2^1225028 is an apocalyptic number.

It is an amenable number.

1225028 is an abundant number, since it is smaller than the sum of its proper divisors (1265404).

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

1225028 is a wasteful number, since it uses less digits than its factorization.

1225028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1225028 is about 1106.8098300973. The cubic root of 1225028 is about 106.9995632789. Note that the first 3 decimals are identical.

It can be divided in two parts, 12250 and 28, that multiplied together give a cube (343000 = 70³).

The spelling of 1225028 in words is "one million, two hundred twenty-five thousand, twenty-eight".