20743098 has 16 divisors (see below), whose sum is σ = 43669920. Its totient is φ = 6550416.

The previous prime is 20743097. The next prime is 20743103. The reversal of 20743098 is 89034702.

It is a super-2 number, since 2×20743098² = 860552229275208, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20743097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90865 + ... + 91092.

It is an arithmetic number, because the mean of its divisors is an integer number (2729370).

Almost surely, 2^20743098 is an apocalyptic number.

20743098 is an abundant number, since it is smaller than the sum of its proper divisors (22926822).

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

20743098 is a wasteful number, since it uses less digits than its factorization.

20743098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181981.

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

The square root of 20743098 is about 4554.4591336403. The cubic root of 20743098 is about 274.7627617883.

The spelling of 20743098 in words is "twenty million, seven hundred forty-three thousand, ninety-eight".