420455230 has 32 divisors (see below), whose sum is σ = 823463424. Its totient is φ = 153639936.

The previous prime is 420455219. The next prime is 420455239. The reversal of 420455230 is 32554024.

It is a junction number, because it is equal to n+sod(n) for n = 420455195 and 420455204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420455239) 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, 4062 + ... + 29281.

It is an arithmetic number, because the mean of its divisors is an integer number (25733232).

Almost surely, 2^420455230 is an apocalyptic number.

420455230 is a deficient number, since it is larger than the sum of its proper divisors (403008194).

420455230 is a wasteful number, since it uses less digits than its factorization.

420455230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33460.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 420455230 is about 20505.0049987802. The cubic root of 420455230 is about 749.1577092306.

The spelling of 420455230 in words is "four hundred twenty million, four hundred fifty-five thousand, two hundred thirty".