420540365 has 8 divisors (see below), whose sum is σ = 576741120. Its totient is φ = 288370512.

The previous prime is 420540361. The next prime is 420540383. The reversal of 420540365 is 563045024.

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 420540365 - 2² = 420540361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420540361) 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, 6007685 + ... + 6007754.

It is an arithmetic number, because the mean of its divisors is an integer number (72092640).

Almost surely, 2^420540365 is an apocalyptic number.

It is an amenable number.

420540365 is a deficient number, since it is larger than the sum of its proper divisors (156200755).

420540365 is a wasteful number, since it uses less digits than its factorization.

420540365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12015451.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 420540365 is about 20507.0808502819. The cubic root of 420540365 is about 749.2082696968.

Adding to 420540365 its reverse (563045024), we get a palindrome (983585389).

The spelling of 420540365 in words is "four hundred twenty million, five hundred forty thousand, three hundred sixty-five".