420359280 has 80 divisors (see below), whose sum is σ = 1421587584. Its totient is φ = 101904640.

The previous prime is 420359279. The next prime is 420359311. The reversal of 420359280 is 82953024.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76974 + ... + 82253.

Almost surely, 2^420359280 is an apocalyptic number.

420359280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420359280 is an abundant number, since it is smaller than the sum of its proper divisors (1001228304).

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

420359280 is a wasteful number, since it uses less digits than its factorization.

420359280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159254 (or 159248 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 420359280 is about 20502.6651926036. The cubic root of 420359280 is about 749.1007177083.

It can be divided in two parts, 42035 and 9280, that added together give a palindrome (51315).

The spelling of 420359280 in words is "four hundred twenty million, three hundred fifty-nine thousand, two hundred eighty".