20090750 has 16 divisors (see below), whose sum is σ = 37610352. Its totient is φ = 8036200.

The previous prime is 20090747. The next prime is 20090773. The reversal of 20090750 is 5709002.

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, 39932 + ... + 40431.

It is an arithmetic number, because the mean of its divisors is an integer number (2350647).

Almost surely, 2^20090750 is an apocalyptic number.

20090750 is a deficient number, since it is larger than the sum of its proper divisors (17519602).

20090750 is an equidigital number, since it uses as much as digits as its factorization.

20090750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80380 (or 80370 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 20090750 is about 4482.2706299375. The cubic root of 20090750 is about 271.8516979192.

Adding to 20090750 its reverse (5709002), we get a palindrome (25799752).

The spelling of 20090750 in words is "twenty million, ninety thousand, seven hundred fifty".