420532545 has 8 divisors (see below), whose sum is σ = 672852096. Its totient is φ = 224284016.

The previous prime is 420532523. The next prime is 420532549. The reversal of 420532545 is 545235024.

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 420532545 - 2⁵ = 420532513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420532549) 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, 14017737 + ... + 14017766.

It is an arithmetic number, because the mean of its divisors is an integer number (84106512).

Almost surely, 2^420532545 is an apocalyptic number.

It is an amenable number.

420532545 is a deficient number, since it is larger than the sum of its proper divisors (252319551).

420532545 is a wasteful number, since it uses less digits than its factorization.

420532545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28035511.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 420532545 is about 20506.8901835456. The cubic root of 420532545 is about 749.2036257946.

Adding to 420532545 its reverse (545235024), we get a palindrome (965767569).

The spelling of 420532545 in words is "four hundred twenty million, five hundred thirty-two thousand, five hundred forty-five".