199782480 has 40 divisors (see below), whose sum is σ = 619326432. Its totient is φ = 53275264.

The previous prime is 199782469. The next prime is 199782481. The reversal of 199782480 is 84287991.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199782481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415974 + ... + 416453.

Almost surely, 2^199782480 is an apocalyptic number.

199782480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199782480 is an abundant number, since it is smaller than the sum of its proper divisors (419543952).

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

199782480 is a wasteful number, since it uses less digits than its factorization.

199782480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832443 (or 832437 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 199782480 is about 14134.4430381957. The cubic root of 199782480 is about 584.5914599557.

The spelling of 199782480 in words is "one hundred ninety-nine million, seven hundred eighty-two thousand, four hundred eighty".