420424045 has 8 divisors (see below), whose sum is σ = 516814200. Its totient is φ = 328135680.

The previous prime is 420424033. The next prime is 420424073. The reversal of 420424045 is 540424024.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 70509609 + 349914436 = 8397^2 + 18706^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420424045 - 2⁹ = 420423533 is a prime.

It is a super-2 number, since 2×420424045² = 353512755228324050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025220 + ... + 1025629.

It is an arithmetic number, because the mean of its divisors is an integer number (64601775).

Almost surely, 2^420424045 is an apocalyptic number.

It is an amenable number.

420424045 is a deficient number, since it is larger than the sum of its proper divisors (96390155).

420424045 is a wasteful number, since it uses less digits than its factorization.

420424045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050895.

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 420424045 is about 20504.2445605782. The cubic root of 420424045 is about 749.1391871946.

Adding to 420424045 its reverse (540424024), we get a palindrome (960848069).

The spelling of 420424045 in words is "four hundred twenty million, four hundred twenty-four thousand, forty-five".