436540061 has 8 divisors (see below), whose sum is σ = 441457464. Its totient is φ = 431631360.

The previous prime is 436540057. The next prime is 436540063. The reversal of 436540061 is 160045634.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30316036 + 406224025 = 5506^2 + 20155^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 436540061 - 2² = 436540057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (436540063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190241 + ... + 192521.

It is an arithmetic number, because the mean of its divisors is an integer number (55182183).

Almost surely, 2^436540061 is an apocalyptic number.

It is an amenable number.

436540061 is a deficient number, since it is larger than the sum of its proper divisors (4917403).

436540061 is a wasteful number, since it uses less digits than its factorization.

436540061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 436540061 is about 20893.5411311726. The cubic root of 436540061 is about 758.5916096892.

Adding to 436540061 its reverse (160045634), we get a palindrome (596585695).

The spelling of 436540061 in words is "four hundred thirty-six million, five hundred forty thousand, sixty-one".