1564264 has 32 divisors (see below), whose sum is σ = 3213000. Its totient is φ = 713856.

The previous prime is 1564243. The next prime is 1564307. The reversal of 1564264 is 4624651.

It can be written as a sum of positive squares in 4 ways, for example, as 1764 + 1562500 = 42^2 + 1250^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17532 + ... + 17620.

2^1564264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1564264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606500).

1564264 is an abundant number, since it is smaller than the sum of its proper divisors (1648736).

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

1564264 is an equidigital number, since it uses as much as digits as its factorization.

1564264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 104 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 1564264 is about 1250.7054009638. The cubic root of 1564264 is about 116.0833724852.

The spelling of 1564264 in words is "one million, five hundred sixty-four thousand, two hundred sixty-four".