20480499 has 64 divisors (see below), whose sum is σ = 35750400. Its totient is φ = 11477376.

The previous prime is 20480479. The next prime is 20480503. The reversal of 20480499 is 99408402.

It is a happy number.

It is not a de Polignac number, because 20480499 - 2⁷ = 20480371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20480479) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 246712 + ... + 246794.

It is an arithmetic number, because the mean of its divisors is an integer number (558600).

Almost surely, 2^20480499 is an apocalyptic number.

20480499 is a deficient number, since it is larger than the sum of its proper divisors (15269901).

20480499 is a wasteful number, since it uses less digits than its factorization.

20480499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 20480499 is about 4525.5385314899. The cubic root of 20480499 is about 273.5983735283.

The spelling of 20480499 in words is "twenty million, four hundred eighty thousand, four hundred ninety-nine".