20498722 has 8 divisors (see below), whose sum is σ = 30920400. Its totient is φ = 10191924.

The previous prime is 20498707. The next prime is 20498741. The reversal of 20498722 is 22789402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28272 + ... + 28987.

It is an arithmetic number, because the mean of its divisors is an integer number (3865050).

Almost surely, 2^20498722 is an apocalyptic number.

20498722 is a deficient number, since it is larger than the sum of its proper divisors (10421678).

20498722 is a wasteful number, since it uses less digits than its factorization.

20498722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57440.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 20498722 is about 4527.5514353787. The cubic root of 20498722 is about 273.6794963101.

The spelling of 20498722 in words is "twenty million, four hundred ninety-eight thousand, seven hundred twenty-two".