498153640 has 24 divisors (see below), whose sum is σ = 1121163390. Its totient is φ = 199204992.

The previous prime is 498153631. The next prime is 498153641. The reversal of 498153640 is 46351894.

498153640 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 174081636 + 324072004 = 13194^2 + 18002^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 498153593 and 498153602.

It is not an unprimeable number, because it can be changed into a prime (498153641) 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, 139396 + ... + 142924.

Almost surely, 2^498153640 is an apocalyptic number.

498153640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

498153640 is an abundant number, since it is smaller than the sum of its proper divisors (623009750).

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

498153640 is an frugal number, since it uses more digits than its factorization.

498153640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7069 (or 3536 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 498153640 is about 22319.3557254684. The cubic root of 498153640 is about 792.7223496817.

Multiplying 498153640 by its sum of digits (40), we get a square (19926145600 = 141160²).

498153640 divided by its sum of digits (40) gives a square (12453841 = 3529²).

The spelling of 498153640 in words is "four hundred ninety-eight million, one hundred fifty-three thousand, six hundred forty".