428086860 has 48 divisors (see below), whose sum is σ = 1269154656. Its totient is φ = 107441152.

The previous prime is 428086847. The next prime is 428086873. The reversal of 428086860 is 68680824.

It is an interprime number because it is at equal distance from previous prime (428086847) and next prime (428086873).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208827 + ... + 210866.

It is an arithmetic number, because the mean of its divisors is an integer number (26440722).

Almost surely, 2^428086860 is an apocalyptic number.

It is an amenable number.

428086860 is an abundant number, since it is smaller than the sum of its proper divisors (841067796).

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

428086860 is a wasteful number, since it uses less digits than its factorization.

428086860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419722 (or 419720 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 428086860 is about 20690.2600273655. The cubic root of 428086860 is about 753.6631812305.

The spelling of 428086860 in words is "four hundred twenty-eight million, eighty-six thousand, eight hundred sixty".