422047100 has 72 divisors (see below), whose sum is σ = 973687680. Its totient is φ = 158238720.

The previous prime is 422047039. The next prime is 422047141. The reversal of 422047100 is 1740224.

It is a super-3 number, since 3×422047100³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 694997 + ... + 695603.

It is an arithmetic number, because the mean of its divisors is an integer number (13523440).

Almost surely, 2^422047100 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 422047100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486843840).

422047100 is an abundant number, since it is smaller than the sum of its proper divisors (551640580).

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

422047100 is a wasteful number, since it uses less digits than its factorization.

422047100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 422047100 is about 20543.7849482514. The cubic root of 422047100 is about 750.1019713204.

Adding to 422047100 its reverse (1740224), we get a palindrome (423787324).

The spelling of 422047100 in words is "four hundred twenty-two million, forty-seven thousand, one hundred".