428477800 has 48 divisors (see below), whose sum is σ = 1019399040. Its totient is φ = 167401920.

The previous prime is 428477767. The next prime is 428477821. The reversal of 428477800 is 8774824.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16312 + ... + 33511.

It is an arithmetic number, because the mean of its divisors is an integer number (21237480).

Almost surely, 2^428477800 is an apocalyptic number.

428477800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428477800 is an abundant number, since it is smaller than the sum of its proper divisors (590921240).

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

428477800 is a wasteful number, since it uses less digits than its factorization.

428477800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49882 (or 49873 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 428477800 is about 20699.7053119121. The cubic root of 428477800 is about 753.8925330023.

The spelling of 428477800 in words is "four hundred twenty-eight million, four hundred seventy-seven thousand, eight hundred".