20790498 has 16 divisors (see below), whose sum is σ = 41832000. Its totient is φ = 6888336.

The previous prime is 20790467. The next prime is 20790527. The reversal of 20790498 is 89409702.

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, 9373 + ... + 11376.

It is an arithmetic number, because the mean of its divisors is an integer number (2614500).

Almost surely, 2^20790498 is an apocalyptic number.

20790498 is an abundant number, since it is smaller than the sum of its proper divisors (21041502).

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

20790498 is a wasteful number, since it uses less digits than its factorization.

20790498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20921.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 20790498 is about 4559.6598557349. The cubic root of 20790498 is about 274.9718891376.

The spelling of 20790498 in words is "twenty million, seven hundred ninety thousand, four hundred ninety-eight".