1409420220 has 192 divisors, whose sum is σ = 4466617344. Its totient is φ = 329472000.

The previous prime is 1409420203. The next prime is 1409420227. The reversal of 1409420220 is 220249041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1409420227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4502784 + ... + 4503096.

It is an arithmetic number, because the mean of its divisors is an integer number (23263632).

Almost surely, 2^1409420220 is an apocalyptic number.

1409420220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1409420220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2233308672).

1409420220 is an abundant number, since it is smaller than the sum of its proper divisors (3057197124).

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

1409420220 is a wasteful number, since it uses less digits than its factorization.

1409420220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1409420220 is about 37542.2458038940. The cubic root of 1409420220 is about 1121.1924533825.

Adding to 1409420220 its reverse (220249041), we get a palindrome (1629669261).

The spelling of 1409420220 in words is "one billion, four hundred nine million, four hundred twenty thousand, two hundred twenty".