420670700 has 36 divisors (see below), whose sum is σ = 917227752. Its totient is φ = 167462400.

The previous prime is 420670687. The next prime is 420670703. The reversal of 420670700 is 7076024.

It is a super-3 number, since 3×420670700³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420670700.

It is not an unprimeable number, because it can be changed into a prime (420670703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11132 + ... + 31068.

Almost surely, 2^420670700 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 420670700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458613876).

420670700 is an abundant number, since it is smaller than the sum of its proper divisors (496557052).

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

420670700 is a wasteful number, since it uses less digits than its factorization.

420670700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20162 (or 20155 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 420670700 is about 20510.2584089036. The cubic root of 420670700 is about 749.2856605823.

The spelling of 420670700 in words is "four hundred twenty million, six hundred seventy thousand, seven hundred".