426416620 has 72 divisors (see below), whose sum is σ = 1096547760. Its totient is φ = 138499200.

The previous prime is 426416561. The next prime is 426416623. The reversal of 426416620 is 26614624.

It is a super-2 number, since 2×426416620² = 363662267624448800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (426416623) 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, 7170 + ... + 30070.

It is an arithmetic number, because the mean of its divisors is an integer number (15229830).

Almost surely, 2^426416620 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 426416620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548273880).

426416620 is an abundant number, since it is smaller than the sum of its proper divisors (670131140).

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

426416620 is a wasteful number, since it uses less digits than its factorization.

426416620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22943 (or 22934 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 426416620 is about 20649.8576266278. The cubic root of 426416620 is about 752.6817300402.

The spelling of 426416620 in words is "four hundred twenty-six million, four hundred sixteen thousand, six hundred twenty".