491879200 has 36 divisors (see below), whose sum is σ = 1200802050. Its totient is φ = 196751360.

The previous prime is 491879197. The next prime is 491879209. The reversal of 491879200 is 2978194.

It can be written as a sum of positive squares in 3 ways, for example, as 420578064 + 71301136 = 20508^2 + 8444^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491879209) 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, 306625 + ... + 308224.

Almost surely, 2^491879200 is an apocalyptic number.

491879200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

491879200 is an abundant number, since it is smaller than the sum of its proper divisors (708922850).

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

491879200 is a wasteful number, since it uses less digits than its factorization.

491879200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614869 (or 614856 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 491879200 is about 22178.3498033555. The cubic root of 491879200 is about 789.3800616308.

The spelling of 491879200 in words is "four hundred ninety-one million, eight hundred seventy-nine thousand, two hundred".