20298930 has 32 divisors (see below), whose sum is σ = 49051008. Its totient is φ = 5376000.

The previous prime is 20298919. The next prime is 20298953. The reversal of 20298930 is 3989202.

It is a junction number, because it is equal to n+sod(n) for n = 20298891 and 20298900.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2290 + ... + 6770.

It is an arithmetic number, because the mean of its divisors is an integer number (1532844).

Almost surely, 2^20298930 is an apocalyptic number.

20298930 is an abundant number, since it is smaller than the sum of its proper divisors (28752078).

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

20298930 is a wasteful number, since it uses less digits than its factorization.

20298930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4642.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 20298930 is about 4505.4333864790. The cubic root of 20298930 is about 272.7874474291.

The spelling of 20298930 in words is "twenty million, two hundred ninety-eight thousand, nine hundred thirty".