420436340 has 24 divisors (see below), whose sum is σ = 883975680. Its totient is φ = 167972768.

The previous prime is 420436337. The next prime is 420436349. The reversal of 420436340 is 43634024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420436349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5081 + ... + 29439.

It is an arithmetic number, because the mean of its divisors is an integer number (36832320).

Almost surely, 2^420436340 is an apocalyptic number.

It is an amenable number.

420436340 is an abundant number, since it is smaller than the sum of its proper divisors (463539340).

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

420436340 is a wasteful number, since it uses less digits than its factorization.

420436340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25231 (or 25229 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 420436340 is about 20504.5443743576. The cubic root of 420436340 is about 749.1464898030.

The spelling of 420436340 in words is "four hundred twenty million, four hundred thirty-six thousand, three hundred forty".