428486280 has 32 divisors (see below), whose sum is σ = 1285459200. Its totient is φ = 114262976.

The previous prime is 428486273. The next prime is 428486293. The reversal of 428486280 is 82684824.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1785240 + ... + 1785479.

It is an arithmetic number, because the mean of its divisors is an integer number (40170600).

Almost surely, 2^428486280 is an apocalyptic number.

428486280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428486280 is an abundant number, since it is smaller than the sum of its proper divisors (856972920).

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

428486280 is a wasteful number, since it uses less digits than its factorization.

428486280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3570733 (or 3570729 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 42.

The square root of 428486280 is about 20699.9101447325. The cubic root of 428486280 is about 753.8975063961.

The spelling of 428486280 in words is "four hundred twenty-eight million, four hundred eighty-six thousand, two hundred eighty".