420420045 has 16 divisors (see below), whose sum is σ = 672985152. Its totient is φ = 224119680.

The previous prime is 420420043. The next prime is 420420053. The reversal of 420420045 is 540024024.

It is not a de Polignac number, because 420420045 - 2¹ = 420420043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420420041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35530 + ... + 45860.

It is an arithmetic number, because the mean of its divisors is an integer number (42061572).

Almost surely, 2^420420045 is an apocalyptic number.

It is an amenable number.

420420045 is a deficient number, since it is larger than the sum of its proper divisors (252565107).

420420045 is a wasteful number, since it uses less digits than its factorization.

420420045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13052.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 420420045 is about 20504.1470195666. The cubic root of 420420045 is about 749.1368113661.

Adding to 420420045 its reverse (540024024), we get a palindrome (960444069).

The spelling of 420420045 in words is "four hundred twenty million, four hundred twenty thousand, forty-five".