1436561604 has 27 divisors (see below), whose sum is σ = 3631883437. Its totient is φ = 478778064.

The previous prime is 1436561537. The next prime is 1436561617. The reversal of 1436561604 is 4061656341.

It is a happy number.

The square root of 1436561604 is 37902.

It is a perfect power (a square), and thus also a powerful number.

1436561604 is a `hidden beast` number, since 1 + 4 + 36 + 5 + 616 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 773396100 + 663165504 = 27810^2 + 25752^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 224254 + ... + 230570.

Almost surely, 2^1436561604 is an apocalyptic number.

1436561604 is the 37902-nd square number.

It is an amenable number.

1436561604 is an abundant number, since it is smaller than the sum of its proper divisors (2195321833).

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

1436561604 is an frugal number, since it uses more digits than its factorization.

1436561604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12644 (or 6322 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The cubic root of 1436561604 is about 1128.3437254134.

Multiplying 1436561604 by its sum of digits (36), we get a square (51716217744 = 227412²).

1436561604 divided by its sum of digits (36) gives a square (39904489 = 6317²).

The spelling of 1436561604 in words is "one billion, four hundred thirty-six million, five hundred sixty-one thousand, six hundred four".