499655040 has 128 divisors (see below), whose sum is σ = 1601946720. Its totient is φ = 132464640.

The previous prime is 499655033. The next prime is 499655047. The reversal of 499655040 is 40556994.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (499655033) and next prime (499655047).

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 499654983 and 499655001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499655047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377580 + ... + 378900.

Almost surely, 2^499655040 is an apocalyptic number.

499655040 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 499655040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (800973360).

499655040 is an abundant number, since it is smaller than the sum of its proper divisors (1102291680).

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

499655040 is a wasteful number, since it uses less digits than its factorization.

499655040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 499655040 is about 22352.9649040122. The cubic root of 499655040 is about 793.5179540354.

The spelling of 499655040 in words is "four hundred ninety-nine million, six hundred fifty-five thousand, forty".