20098734 has 16 divisors (see below), whose sum is σ = 41945472. Its totient is φ = 6408248.

The previous prime is 20098721. The next prime is 20098747. The reversal of 20098734 is 43789002.

It is an interprime number because it is at equal distance from previous prime (20098721) and next prime (20098747).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 20098695 and 20098704.

It is a congruent number.

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, 72684 + ... + 72959.

It is an arithmetic number, because the mean of its divisors is an integer number (2621592).

Almost surely, 2^20098734 is an apocalyptic number.

20098734 is an abundant number, since it is smaller than the sum of its proper divisors (21846738).

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

20098734 is a wasteful number, since it uses less digits than its factorization.

20098734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145671.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 20098734 is about 4483.1611615020. The cubic root of 20098734 is about 271.8877041494.

The spelling of 20098734 in words is "twenty million, ninety-eight thousand, seven hundred thirty-four".