2898121820 has 36 divisors (see below), whose sum is σ = 6689637192. Its totient is φ = 1053861600.

The previous prime is 2898121819. The next prime is 2898121823. The reversal of 2898121820 is 281218982.

It is a super-2 number, since 2×2898121820² = 16798220167120224800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2898121823) 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, 596366 + ... + 601205.

Almost surely, 2^2898121820 is an apocalyptic number.

2898121820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2898121820 is an abundant number, since it is smaller than the sum of its proper divisors (3791515372).

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

2898121820 is a wasteful number, since it uses less digits than its factorization.

2898121820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197602 (or 1197589 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 41.

The square root of 2898121820 is about 53834.2067834198. The cubic root of 2898121820 is about 1425.7352225287.

The spelling of 2898121820 in words is "two billion, eight hundred ninety-eight million, one hundred twenty-one thousand, eight hundred twenty".