20260998 has 24 divisors (see below), whose sum is σ = 44921448. Its totient is φ = 6596352.

The previous prime is 20260997. The next prime is 20261009. The reversal of 20260998 is 89906202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20260993) 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, 12315 + ... + 13862.

It is an arithmetic number, because the mean of its divisors is an integer number (1871727).

Almost surely, 2^20260998 is an apocalyptic number.

20260998 is an abundant number, since it is smaller than the sum of its proper divisors (24660450).

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

20260998 is a wasteful number, since it uses less digits than its factorization.

20260998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26228 (or 26225 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 20260998 is about 4501.2218341246. The cubic root of 20260998 is about 272.6174249135.

The spelling of 20260998 in words is "twenty million, two hundred sixty thousand, nine hundred ninety-eight".