420594730 has 8 divisors (see below), whose sum is σ = 757070532. Its totient is φ = 168237888.

The previous prime is 420594719. The next prime is 420594731. The reversal of 420594730 is 37495024.

It can be written as a sum of positive squares in 2 ways, for example, as 393585921 + 27008809 = 19839^2 + 5197^2 .

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

It is not an unprimeable number, because it can be changed into a prime (420594731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21029727 + ... + 21029746.

Almost surely, 2^420594730 is an apocalyptic number.

420594730 is a deficient number, since it is larger than the sum of its proper divisors (336475802).

420594730 is a wasteful number, since it uses less digits than its factorization.

420594730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42059480.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 420594730 is about 20508.4063252121. The cubic root of 420594730 is about 749.2405527275.

The spelling of 420594730 in words is "four hundred twenty million, five hundred ninety-four thousand, seven hundred thirty".