432540646 has 4 divisors (see below), whose sum is σ = 648810972. Its totient is φ = 216270322.

The previous prime is 432540637. The next prime is 432540659. The reversal of 432540646 is 646045234.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108135160 + ... + 108135163.

It is an arithmetic number, because the mean of its divisors is an integer number (162202743).

Almost surely, 2^432540646 is an apocalyptic number.

432540646 is a deficient number, since it is larger than the sum of its proper divisors (216270326).

432540646 is a wasteful number, since it uses less digits than its factorization.

432540646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216270325.

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

The square root of 432540646 is about 20797.6115455597. The cubic root of 432540646 is about 756.2678555445.

The spelling of 432540646 in words is "four hundred thirty-two million, five hundred forty thousand, six hundred forty-six".