420133816 has 16 divisors (see below), whose sum is σ = 809042040. Its totient is φ = 204389280.

The previous prime is 420133811. The next prime is 420133829. The reversal of 420133816 is 618331024.

It is a super-3 number, since 3×420133816³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420133811) 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, 709390 + ... + 709981.

Almost surely, 2^420133816 is an apocalyptic number.

It is an amenable number.

420133816 is a deficient number, since it is larger than the sum of its proper divisors (388908224).

420133816 is a wasteful number, since it uses less digits than its factorization.

420133816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419414 (or 1419410 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 420133816 is about 20497.1660480175. The cubic root of 420133816 is about 748.9667644787.

The spelling of 420133816 in words is "four hundred twenty million, one hundred thirty-three thousand, eight hundred sixteen".