428051804 has 12 divisors (see below), whose sum is σ = 781659984. Its totient is φ = 204720384.

The previous prime is 428051777. The next prime is 428051807. The reversal of 428051804 is 408150824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428051807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2326277 + ... + 2326460.

It is an arithmetic number, because the mean of its divisors is an integer number (65138332).

Almost surely, 2^428051804 is an apocalyptic number.

It is an amenable number.

428051804 is a deficient number, since it is larger than the sum of its proper divisors (353608180).

428051804 is a wasteful number, since it uses less digits than its factorization.

428051804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652764 (or 4652762 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 428051804 is about 20689.4128481211. The cubic root of 428051804 is about 753.6426081956.

The spelling of 428051804 in words is "four hundred twenty-eight million, fifty-one thousand, eight hundred four".