1564340224 has 52 divisors (see below), whose sum is σ = 3293109640. Its totient is φ = 740966400.

The previous prime is 1564340213. The next prime is 1564340257. The reversal of 1564340224 is 4220434651.

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, 67774 + ... + 87874.

Almost surely, 2^1564340224 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 1564340224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1646554820).

1564340224 is an abundant number, since it is smaller than the sum of its proper divisors (1728769416).

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

1564340224 is an equidigital number, since it uses as much as digits as its factorization.

1564340224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20144 (or 20122 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 1564340224 is about 39551.7410994763. The cubic root of 1564340224 is about 1160.8525797155.

Adding to 1564340224 its reverse (4220434651), we get a palindrome (5784774875).

The spelling of 1564340224 in words is "one billion, five hundred sixty-four million, three hundred forty thousand, two hundred twenty-four".