499354890 has 16 divisors (see below), whose sum is σ = 1198451808. Its totient is φ = 133161296.

The previous prime is 499354873. The next prime is 499354897. The reversal of 499354890 is 98453994.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (499354897) 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, 8322552 + ... + 8322611.

It is an arithmetic number, because the mean of its divisors is an integer number (74903238).

Almost surely, 2^499354890 is an apocalyptic number.

499354890 is an abundant number, since it is smaller than the sum of its proper divisors (699096918).

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

499354890 is a wasteful number, since it uses less digits than its factorization.

499354890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16645173.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 499354890 is about 22346.2500209767. The cubic root of 499354890 is about 793.3590296426.

The spelling of 499354890 in words is "four hundred ninety-nine million, three hundred fifty-four thousand, eight hundred ninety".