20898276 has 24 divisors (see below), whose sum is σ = 55728960. Its totient is φ = 5970912.

The previous prime is 20898263. The next prime is 20898281. The reversal of 20898276 is 67289802.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 124311 + ... + 124478.

It is an arithmetic number, because the mean of its divisors is an integer number (2322040).

Almost surely, 2^20898276 is an apocalyptic number.

It is an amenable number.

20898276 is an abundant number, since it is smaller than the sum of its proper divisors (34830684).

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

20898276 is a wasteful number, since it uses less digits than its factorization.

20898276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248803 (or 248801 counting only the distinct ones).

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

The square root of 20898276 is about 4571.4632230830. The cubic root of 20898276 is about 275.4462221133.

The spelling of 20898276 in words is "twenty million, eight hundred ninety-eight thousand, two hundred seventy-six".