420700380 has 48 divisors (see below), whose sum is σ = 1215965184. Its totient is φ = 108567360.

The previous prime is 420700369. The next prime is 420700409. The reversal of 420700380 is 83007024.

It is a self number, because there is not a number n which added to its sum of digits gives 420700380.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111232 + ... + 114951.

It is an arithmetic number, because the mean of its divisors is an integer number (25332608).

Almost surely, 2^420700380 is an apocalyptic number.

It is an amenable number.

420700380 is an abundant number, since it is smaller than the sum of its proper divisors (795264804).

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

420700380 is a wasteful number, since it uses less digits than its factorization.

420700380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226226 (or 226224 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 420700380 is about 20510.9819365139. The cubic root of 420700380 is about 749.3032818678.

The spelling of 420700380 in words is "four hundred twenty million, seven hundred thousand, three hundred eighty".