436225638 has 8 divisors (see below), whose sum is σ = 872451288. Its totient is φ = 145408544.

The previous prime is 436225619. The next prime is 436225639. The reversal of 436225638 is 836522634.

It is a happy number.

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

436225638 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 436225596 and 436225605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (436225639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36352131 + ... + 36352142.

It is an arithmetic number, because the mean of its divisors is an integer number (109056411).

Almost surely, 2^436225638 is an apocalyptic number.

436225638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

436225638 is a wasteful number, since it uses less digits than its factorization.

436225638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72704278.

The product of its digits is 207360, while the sum is 39.

The square root of 436225638 is about 20886.0153691411. The cubic root of 436225638 is about 758.4094378343.

The spelling of 436225638 in words is "four hundred thirty-six million, two hundred twenty-five thousand, six hundred thirty-eight".