20454499 has 8 divisors (see below), whose sum is σ = 22087520. Its totient is φ = 18830016.

The previous prime is 20454481. The next prime is 20454523. The reversal of 20454499 is 99445402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20454499 - 2⁹ = 20453987 is a prime.

20454499 is a modest number, since divided by 4499 gives 2045 as remainder.

It is not an unprimeable number, because it can be changed into a prime (20454409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3394 + ... + 7240.

It is an arithmetic number, because the mean of its divisors is an integer number (2760940).

Almost surely, 2^20454499 is an apocalyptic number.

20454499 is a deficient number, since it is larger than the sum of its proper divisors (1633021).

20454499 is a wasteful number, since it uses less digits than its factorization.

20454499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 20454499 is about 4522.6650329203. The cubic root of 20454499 is about 273.4825467597.

The spelling of 20454499 in words is "twenty million, four hundred fifty-four thousand, four hundred ninety-nine".