498742440 has 128 divisors (see below), whose sum is σ = 1716284160. Its totient is φ = 113577984.

The previous prime is 498742369. The next prime is 498742441. The reversal of 498742440 is 44247894.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 498742392 and 498742401.

It is not an unprimeable number, because it can be changed into a prime (498742441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265344 + ... + 267216.

It is an arithmetic number, because the mean of its divisors is an integer number (13408470).

Almost surely, 2^498742440 is an apocalyptic number.

498742440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 498742440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (858142080).

498742440 is an abundant number, since it is smaller than the sum of its proper divisors (1217541720).

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

498742440 is a wasteful number, since it uses less digits than its factorization.

498742440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211 (or 2207 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 498742440 is about 22332.5421750413. The cubic root of 498742440 is about 793.0345499795.

The spelling of 498742440 in words is "four hundred ninety-eight million, seven hundred forty-two thousand, four hundred forty".