1566272 has 14 divisors (see below), whose sum is σ = 3108198. Its totient is φ = 783104.

The previous prime is 1566263. The next prime is 1566281. The reversal of 1566272 is 2726651.

It is an interprime number because it is at equal distance from previous prime (1566263) and next prime (1566281).

It can be written as a sum of positive squares in only one way, i.e., 1478656 + 87616 = 1216^2 + 296^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12173 + ... + 12300.

2^1566272 is an apocalyptic number.

It is an amenable number.

1566272 is a deficient number, since it is larger than the sum of its proper divisors (1541926).

1566272 is an equidigital number, since it uses as much as digits as its factorization.

1566272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24485 (or 24475 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 1566272 is about 1251.5078905065. The cubic root of 1566272 is about 116.1330221913.

The spelling of 1566272 in words is "one million, five hundred sixty-six thousand, two hundred seventy-two".