420033340 has 12 divisors (see below), whose sum is σ = 882070056. Its totient is φ = 168013328.

The previous prime is 420033311. The next prime is 420033379. The reversal of 420033340 is 43330024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10500814 + ... + 10500853.

It is an arithmetic number, because the mean of its divisors is an integer number (73505838).

Almost surely, 2^420033340 is an apocalyptic number.

It is an amenable number.

420033340 is an abundant number, since it is smaller than the sum of its proper divisors (462036716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420033340 is a wasteful number, since it uses less digits than its factorization.

420033340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21001676 (or 21001674 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 420033340 is about 20494.7149284883. The cubic root of 420033340 is about 748.9070539916.

Adding to 420033340 its reverse (43330024), we get a palindrome (463363364).

The spelling of 420033340 in words is "four hundred twenty million, thirty-three thousand, three hundred forty".