2028697008 has 160 divisors (see below), whose sum is σ = 5786296320. Its totient is φ = 608670720.

The previous prime is 2028696977. The next prime is 2028697019. The reversal of 2028697008 is 8007968202.

It is a happy number.

It is a super-2 number, since 2×2028697008² = 8231223100536304128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8488153 + ... + 8488391.

It is an arithmetic number, because the mean of its divisors is an integer number (36164352).

Almost surely, 2^2028697008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2028697008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2893148160).

2028697008 is an abundant number, since it is smaller than the sum of its proper divisors (3757599312).

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

2028697008 is a wasteful number, since it uses less digits than its factorization.

2028697008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 2028697008 is about 45041.0591349715. The cubic root of 2028697008 is about 1265.9184502075.

The spelling of 2028697008 in words is "two billion, twenty-eight million, six hundred ninety-seven thousand, eight".