498391740 has 324 divisors, whose sum is σ = 1937157768. Its totient is φ = 103340160.

The previous prime is 498391697. The next prime is 498391741. The reversal of 498391740 is 47193894.

498391740 is a `hidden beast` number, since 498 + 3 + 91 + 74 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498391741) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1066987 + ... + 1067453.

It is an arithmetic number, because the mean of its divisors is an integer number (5978882).

Almost surely, 2^498391740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 498391740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (968578884).

498391740 is an abundant number, since it is smaller than the sum of its proper divisors (1438766028).

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

498391740 is a wasteful number, since it uses less digits than its factorization.

498391740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 498391740 is about 22324.6890235900. The cubic root of 498391740 is about 792.8486274086.

The spelling of 498391740 in words is "four hundred ninety-eight million, three hundred ninety-one thousand, seven hundred forty".