420241340 has 24 divisors (see below), whose sum is σ = 886178832. Its totient is φ = 167397120.

The previous prime is 420241331. The next prime is 420241379. The reversal of 420241340 is 43142024.

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 7 ways as a sum of consecutive naturals, for example, 38774 + ... + 48413.

It is an arithmetic number, because the mean of its divisors is an integer number (36924118).

Almost surely, 2^420241340 is an apocalyptic number.

It is an amenable number.

420241340 is an abundant number, since it is smaller than the sum of its proper divisors (465937492).

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

420241340 is a wasteful number, since it uses less digits than its factorization.

420241340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87437 (or 87435 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 420241340 is about 20499.7887793997. The cubic root of 420241340 is about 749.0306528798.

Adding to 420241340 its reverse (43142024), we get a palindrome (463383364).

The spelling of 420241340 in words is "four hundred twenty million, two hundred forty-one thousand, three hundred forty".