499779000 has 192 divisors, whose sum is σ = 1930818240. Its totient is φ = 114220800.

The previous prime is 499778977. The next prime is 499779001. The reversal of 499779000 is 977994.

499779000 is a `hidden beast` number, since 499 + 77 + 90 + 0 + 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 (499779001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59034 + ... + 66966.

It is an arithmetic number, because the mean of its divisors is an integer number (10056345).

Almost surely, 2^499779000 is an apocalyptic number.

499779000 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 499779000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965409120).

499779000 is an abundant number, since it is smaller than the sum of its proper divisors (1431039240).

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

499779000 is a wasteful number, since it uses less digits than its factorization.

499779000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7967 (or 7950 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 499779000 is about 22355.7375185879. The cubic root of 499779000 is about 793.5835702068.

The spelling of 499779000 in words is "four hundred ninety-nine million, seven hundred seventy-nine thousand".