1565628 has 12 divisors (see below), whose sum is σ = 3653160. Its totient is φ = 521872.

The previous prime is 1565611. The next prime is 1565651. The reversal of 1565628 is 8265651.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65223 + ... + 65246.

It is an arithmetic number, because the mean of its divisors is an integer number (304430).

2^1565628 is an apocalyptic number.

It is an amenable number.

1565628 is an abundant number, since it is smaller than the sum of its proper divisors (2087532).

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

1565628 is a wasteful number, since it uses less digits than its factorization.

1565628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130476 (or 130474 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 1565628 is about 1251.2505744254. The cubic root of 1565628 is about 116.1171033047.

The spelling of 1565628 in words is "one million, five hundred sixty-five thousand, six hundred twenty-eight".