420197620 has 24 divisors (see below), whose sum is σ = 882804384. Its totient is φ = 168004896.

The previous prime is 420197599. The next prime is 420197629. The reversal of 420197620 is 26791024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420197629) 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, 76279 + ... + 81601.

It is an arithmetic number, because the mean of its divisors is an integer number (36783516).

Almost surely, 2^420197620 is an apocalyptic number.

It is an amenable number.

420197620 is an abundant number, since it is smaller than the sum of its proper divisors (462606764).

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

420197620 is a wasteful number, since it uses less digits than its factorization.

420197620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9279 (or 9277 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 420197620 is about 20498.7223992131. The cubic root of 420197620 is about 749.0046767301.

The spelling of 420197620 in words is "four hundred twenty million, one hundred ninety-seven thousand, six hundred twenty".