420410140 has 48 divisors (see below), whose sum is σ = 908772480. Its totient is φ = 163275840.

The previous prime is 420410117. The next prime is 420410143. The reversal of 420410140 is 41014024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420410143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152575 + ... + 155305.

It is an arithmetic number, because the mean of its divisors is an integer number (18932760).

Almost surely, 2^420410140 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 420410140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454386240).

420410140 is an abundant number, since it is smaller than the sum of its proper divisors (488362340).

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

420410140 is a wasteful number, since it uses less digits than its factorization.

420410140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2962 (or 2960 counting only the distinct ones).

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

The square root of 420410140 is about 20503.9054816393. The cubic root of 420410140 is about 749.1309281560.

Adding to 420410140 its reverse (41014024), we get a palindrome (461424164).

The spelling of 420410140 in words is "four hundred twenty million, four hundred ten thousand, one hundred forty".