420783792 has 120 divisors (see below), whose sum is σ = 1286969712. Its totient is φ = 117680640.

The previous prime is 420783773. The next prime is 420783793. The reversal of 420783792 is 297387024.

It is not an unprimeable number, because it can be changed into a prime (420783793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72718 + ... + 78290.

Almost surely, 2^420783792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420783792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643484856).

420783792 is an abundant number, since it is smaller than the sum of its proper divisors (866185920).

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

420783792 is a wasteful number, since it uses less digits than its factorization.

420783792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5619 (or 5602 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 420783792 is about 20513.0151854865. The cubic root of 420783792 is about 749.3527998922.

The spelling of 420783792 in words is "four hundred twenty million, seven hundred eighty-three thousand, seven hundred ninety-two".