428362508 has 18 divisors (see below), whose sum is σ = 872024076. Its totient is φ = 183583848.

The previous prime is 428362499. The next prime is 428362523. The reversal of 428362508 is 805263824.

It is a super-3 number, since 3×428362508³ (a number of 27 digits) contains 333 as substring.

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 5 ways as a sum of consecutive naturals, for example, 1092566 + ... + 1092957.

It is an arithmetic number, because the mean of its divisors is an integer number (48445782).

Almost surely, 2^428362508 is an apocalyptic number.

It is an amenable number.

428362508 is an abundant number, since it is smaller than the sum of its proper divisors (443661568).

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

428362508 is a wasteful number, since it uses less digits than its factorization.

428362508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185541 (or 2185532 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 428362508 is about 20696.9202539895. The cubic root of 428362508 is about 753.8249094484.

The spelling of 428362508 in words is "four hundred twenty-eight million, three hundred sixty-two thousand, five hundred eight".