420959880 has 96 divisors (see below), whose sum is σ = 1492508160. Its totient is φ = 102049920.

The previous prime is 420959879. The next prime is 420959887. The reversal of 420959880 is 88959024.

It is a super-2 number, since 2×420959880² = 354414441139228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (420959887) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 49192 + ... + 57111.

It is an arithmetic number, because the mean of its divisors is an integer number (15546960).

Almost surely, 2^420959880 is an apocalyptic number.

420959880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420959880 is an abundant number, since it is smaller than the sum of its proper divisors (1071548280).

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

420959880 is a wasteful number, since it uses less digits than its factorization.

420959880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106331 (or 106324 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 420959880 is about 20517.3068408112. The cubic root of 420959880 is about 749.4573140840.

The spelling of 420959880 in words is "four hundred twenty million, nine hundred fifty-nine thousand, eight hundred eighty".