4492455821 has 8 divisors (see below), whose sum is σ = 5221256640. Its totient is φ = 3785410368.

The previous prime is 4492455809. The next prime is 4492455827. The reversal of 4492455821 is 1285542944.

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 4492455821 - 2⁶ = 4492455757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4492455827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5438396 + ... + 5439221.

It is an arithmetic number, because the mean of its divisors is an integer number (652657080).

Almost surely, 2^4492455821 is an apocalyptic number.

It is an amenable number.

4492455821 is a deficient number, since it is larger than the sum of its proper divisors (728800819).

4492455821 is a wasteful number, since it uses less digits than its factorization.

4492455821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10877683.

The product of its digits is 460800, while the sum is 44.

The square root of 4492455821 is about 67025.7847473642. The cubic root of 4492455821 is about 1650.0405035665.

The spelling of 4492455821 in words is "four billion, four hundred ninety-two million, four hundred fifty-five thousand, eight hundred twenty-one".