420257230 has 8 divisors (see below), whose sum is σ = 756463032. Its totient is φ = 168102888.

The previous prime is 420257209. The next prime is 420257231. The reversal of 420257230 is 32752024.

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

It is a super-2 number, since 2×420257230² = 353232278734545800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420257195 and 420257204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420257231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21012852 + ... + 21012871.

It is an arithmetic number, because the mean of its divisors is an integer number (94557879).

Almost surely, 2^420257230 is an apocalyptic number.

420257230 is a deficient number, since it is larger than the sum of its proper divisors (336205802).

420257230 is a wasteful number, since it uses less digits than its factorization.

420257230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42025730.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 420257230 is about 20500.1763407050. The cubic root of 420257230 is about 749.0400934448.

The spelling of 420257230 in words is "four hundred twenty million, two hundred fifty-seven thousand, two hundred thirty".