420340410 has 96 divisors (see below), whose sum is σ = 1303361280. Its totient is φ = 91897344.

The previous prime is 420340397. The next prime is 420340423. The reversal of 420340410 is 14043024.

It is an interprime number because it is at equal distance from previous prime (420340397) and next prime (420340423).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15 + ... + 28994.

It is an arithmetic number, because the mean of its divisors is an integer number (13576680).

Almost surely, 2^420340410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420340410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651680640).

420340410 is an abundant number, since it is smaller than the sum of its proper divisors (883020870).

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

420340410 is a wasteful number, since it uses less digits than its factorization.

420340410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29052 (or 29049 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 420340410 is about 20502.2050033649. The cubic root of 420340410 is about 749.0895084541.

Adding to 420340410 its reverse (14043024), we get a palindrome (434383434).

The spelling of 420340410 in words is "four hundred twenty million, three hundred forty thousand, four hundred ten".