420111412 has 24 divisors (see below), whose sum is σ = 889648704. Its totient is φ = 169456512.

The previous prime is 420111409. The next prime is 420111437. The reversal of 420111412 is 214111024.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 440818 + ... + 441769.

It is an arithmetic number, because the mean of its divisors is an integer number (37068696).

Almost surely, 2^420111412 is an apocalyptic number.

It is an amenable number.

420111412 is an abundant number, since it is smaller than the sum of its proper divisors (469537292).

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

420111412 is a wasteful number, since it uses less digits than its factorization.

420111412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882615 (or 882613 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 420111412 is about 20496.6195261560. The cubic root of 420111412 is about 748.9534511414.

Adding to 420111412 its reverse (214111024), we get a palindrome (634222436).

The spelling of 420111412 in words is "four hundred twenty million, one hundred eleven thousand, four hundred twelve".