2028510004 has 6 divisors (see below), whose sum is σ = 3549892514. Its totient is φ = 1014255000.

The previous prime is 2028509971. The next prime is 2028510007. The reversal of 2028510004 is 4000158202.

It can be written as a sum of positive squares in only one way, i.e., 1079253904 + 949256100 = 32852^2 + 30810^2 .

It is a super-2 number, since 2×2028510004² = 8229705672656160032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028510007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253563747 + ... + 253563754.

Almost surely, 2^2028510004 is an apocalyptic number.

It is an amenable number.

2028510004 is a deficient number, since it is larger than the sum of its proper divisors (1521382510).

2028510004 is a wasteful number, since it uses less digits than its factorization.

2028510004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507127505 (or 507127503 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2028510004 is about 45038.9831590368. The cubic root of 2028510004 is about 1265.8795518264.

Adding to 2028510004 its reverse (4000158202), we get a palindrome (6028668206).

The spelling of 2028510004 in words is "two billion, twenty-eight million, five hundred ten thousand, four".