20498416 has 20 divisors (see below), whose sum is σ = 41806600. Its totient is φ = 9709632.

The previous prime is 20498371. The next prime is 20498419. The reversal of 20498416 is 61489402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20498419) 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 3 ways as a sum of consecutive naturals, for example, 33411 + ... + 34018.

It is an arithmetic number, because the mean of its divisors is an integer number (2090330).

Almost surely, 2^20498416 is an apocalyptic number.

It is an amenable number.

20498416 is an abundant number, since it is smaller than the sum of its proper divisors (21308184).

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

20498416 is a wasteful number, since it uses less digits than its factorization.

20498416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67456 (or 67450 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 20498416 is about 4527.5176421523. The cubic root of 20498416 is about 273.6781344961.

It can be divided in two parts, 20 and 498416, that added together give a square (498436 = 706²).

The spelling of 20498416 in words is "twenty million, four hundred ninety-eight thousand, four hundred sixteen".