20740798 has 16 divisors (see below), whose sum is σ = 34586496. Its totient is φ = 9263520.

The previous prime is 20740789. The next prime is 20740823. The reversal of 20740798 is 89704702.

It is a happy number.

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, 12061 + ... + 13672.

It is an arithmetic number, because the mean of its divisors is an integer number (2161656).

Almost surely, 2^20740798 is an apocalyptic number.

20740798 is a deficient number, since it is larger than the sum of its proper divisors (13845698).

20740798 is a wasteful number, since it uses less digits than its factorization.

20740798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25779.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 20740798 is about 4554.2066268451. The cubic root of 20740798 is about 274.7526061579.

The spelling of 20740798 in words is "twenty million, seven hundred forty thousand, seven hundred ninety-eight".