2028865404 has 36 divisors (see below), whose sum is σ = 4902914744. Its totient is φ = 652964928.

The previous prime is 2028865367. The next prime is 2028865409. The reversal of 2028865404 is 4045688202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028865409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90427 + ... + 110610.

Almost surely, 2^2028865404 is an apocalyptic number.

It is an amenable number.

2028865404 is an abundant number, since it is smaller than the sum of its proper divisors (2874049340).

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

2028865404 is a wasteful number, since it uses less digits than its factorization.

2028865404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201102 (or 201071 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 2028865404 is about 45042.9284571951. The cubic root of 2028865404 is about 1265.9534759251.

The spelling of 2028865404 in words is "two billion, twenty-eight million, eight hundred sixty-five thousand, four hundred four".