498140321 has 6 divisors (see below), whose sum is σ = 579469410. Its totient is φ = 426977376.

The previous prime is 498140317. The next prime is 498140327. The reversal of 498140321 is 123041894.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 497067025 + 1073296 = 22295^2 + 1036^2 .

It is not a de Polignac number, because 498140321 - 2² = 498140317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (498140327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5083016 + ... + 5083113.

It is an arithmetic number, because the mean of its divisors is an integer number (96578235).

Almost surely, 2^498140321 is an apocalyptic number.

It is an amenable number.

498140321 is a deficient number, since it is larger than the sum of its proper divisors (81329089).

498140321 is a wasteful number, since it uses less digits than its factorization.

498140321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10166143 (or 10166136 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 498140321 is about 22319.0573501660. The cubic root of 498140321 is about 792.7152846840.

The spelling of 498140321 in words is "four hundred ninety-eight million, one hundred forty thousand, three hundred twenty-one".