420105465 has 48 divisors (see below), whose sum is σ = 818318592. Its totient is φ = 197822592.

The previous prime is 420105461. The next prime is 420105473. The reversal of 420105465 is 564501024.

It is not a de Polignac number, because 420105465 - 2² = 420105461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420105461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2157 + ... + 29066.

It is an arithmetic number, because the mean of its divisors is an integer number (17048304).

Almost surely, 2^420105465 is an apocalyptic number.

420105465 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420105465 is a deficient number, since it is larger than the sum of its proper divisors (398213127).

420105465 is a wasteful number, since it uses less digits than its factorization.

420105465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31270 (or 31267 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 420105465 is about 20496.4744529395. The cubic root of 420105465 is about 748.9499171208.

Adding to 420105465 its reverse (564501024), we get a palindrome (984606489).

The spelling of 420105465 in words is "four hundred twenty million, one hundred five thousand, four hundred sixty-five".