436640542 has 8 divisors (see below), whose sum is σ = 705342456. Its totient is φ = 201526392.

The previous prime is 436640489. The next prime is 436640551. The reversal of 436640542 is 245046634.

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

It is a junction number, because it is equal to n+sod(n) for n = 436640498 and 436640507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8396908 + ... + 8396959.

It is an arithmetic number, because the mean of its divisors is an integer number (88167807).

Almost surely, 2^436640542 is an apocalyptic number.

436640542 is a deficient number, since it is larger than the sum of its proper divisors (268701914).

436640542 is a wasteful number, since it uses less digits than its factorization.

436640542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16793882.

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 436640542 is about 20895.9455876014. The cubic root of 436640542 is about 758.6498083921.

The spelling of 436640542 in words is "four hundred thirty-six million, six hundred forty thousand, five hundred forty-two".