498914640 has 400 divisors, whose sum is σ = 2100079872. Its totient is φ = 107163648.

The previous prime is 498914627. The next prime is 498914677. The reversal of 498914640 is 46419894.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 770797 + ... + 771443.

Almost surely, 2^498914640 is an apocalyptic number.

498914640 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 498914640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050039936).

498914640 is an abundant number, since it is smaller than the sum of its proper divisors (1601165232).

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

498914640 is a wasteful number, since it uses less digits than its factorization.

498914640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 498914640 is about 22336.3972027720. The cubic root of 498914640 is about 793.1258093984.

The spelling of 498914640 in words is "four hundred ninety-eight million, nine hundred fourteen thousand, six hundred forty".