420040232 has 16 divisors (see below), whose sum is σ = 791311200. Its totient is φ = 209023920.

The previous prime is 420040213. The next prime is 420040241. The reversal of 420040232 is 232040024.

It is a super-2 number, since 2×420040232² = 352867592997227648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420040232.

It is an unprimeable number.

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, 122732 + ... + 126107.

It is an arithmetic number, because the mean of its divisors is an integer number (49456950).

Almost surely, 2^420040232 is an apocalyptic number.

It is an amenable number.

420040232 is a deficient number, since it is larger than the sum of its proper divisors (371270968).

420040232 is a wasteful number, since it uses less digits than its factorization.

420040232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249056 (or 249052 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 420040232 is about 20494.8830687077. The cubic root of 420040232 is about 748.9111500468.

Adding to 420040232 its reverse (232040024), we get a palindrome (652080256).

The spelling of 420040232 in words is "four hundred twenty million, forty thousand, two hundred thirty-two".