436420240 has 40 divisors (see below), whose sum is σ = 1017937080. Its totient is φ = 174007296.

The previous prime is 436420223. The next prime is 436420241. The reversal of 436420240 is 42024634.

It can be written as a sum of positive squares in 4 ways, for example, as 278784 + 436141456 = 528^2 + 20884^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (436420241) 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, 16756 + ... + 33964.

It is an arithmetic number, because the mean of its divisors is an integer number (25448427).

Almost surely, 2^436420240 is an apocalyptic number.

436420240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

436420240 is an abundant number, since it is smaller than the sum of its proper divisors (581516840).

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

436420240 is a wasteful number, since it uses less digits than its factorization.

436420240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17539 (or 17533 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 436420240 is about 20890.6735171464. The cubic root of 436420240 is about 758.5221975619.

Adding to 436420240 its reverse (42024634), we get a palindrome (478444874).

The spelling of 436420240 in words is "four hundred thirty-six million, four hundred twenty thousand, two hundred forty".