1564730450 has 24 divisors (see below), whose sum is σ = 2913365988. Its totient is φ = 625254080.

The previous prime is 1564730393. The next prime is 1564730491. The reversal of 1564730450 is 540374651.

It can be written as a sum of positive squares in 6 ways, for example, as 69438889 + 1495291561 = 8333^2 + 38669^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1564730450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35204 + ... + 66096.

Almost surely, 2^1564730450 is an apocalyptic number.

1564730450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1564730450 is a deficient number, since it is larger than the sum of its proper divisors (1348635538).

1564730450 is a wasteful number, since it uses less digits than its factorization.

1564730450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31918 (or 31913 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 1564730450 is about 39556.6738996089. The cubic root of 1564730450 is about 1160.9490969118.

The spelling of 1564730450 in words is "one billion, five hundred sixty-four million, seven hundred thirty thousand, four hundred fifty".