1220420410 has 64 divisors (see below), whose sum is σ = 2489439744. Its totient is φ = 426888000.

The previous prime is 1220420387. The next prime is 1220420419. The reversal of 1220420410 is 140240221.

It is not an unprimeable number, because it can be changed into a prime (1220420419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314985 + ... + 318835.

It is an arithmetic number, because the mean of its divisors is an integer number (38897496).

Almost surely, 2^1220420410 is an apocalyptic number.

1220420410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220420410 is an abundant number, since it is smaller than the sum of its proper divisors (1269019334).

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

1220420410 is a wasteful number, since it uses less digits than its factorization.

1220420410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3979.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1220420410 is about 34934.5160264172. The cubic root of 1220420410 is about 1068.6524539176.

Adding to 1220420410 its reverse (140240221), we get a palindrome (1360660631).

The spelling of 1220420410 in words is "one billion, two hundred twenty million, four hundred twenty thousand, four hundred ten".