2002428 has 24 divisors (see below), whose sum is σ = 5191760. Its totient is φ = 667440.

The previous prime is 2002417. The next prime is 2002453. The reversal of 2002428 is 8242002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 2002428.

It is a congruent number.

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, 9163 + ... + 9378.

2^2002428 is an apocalyptic number.

It is an amenable number.

2002428 is an abundant number, since it is smaller than the sum of its proper divisors (3189332).

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

2002428 is a wasteful number, since it uses less digits than its factorization.

2002428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18554 (or 18546 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2002428 is about 1415.0717296307. The cubic root of 2002428 is about 126.0430691767.

It can be divided in two parts, 200 and 2428, that added together give a triangular number (2628 = T₇₂).

The spelling of 2002428 in words is "two million, two thousand, four hundred twenty-eight".