190808730 has 64 divisors (see below), whose sum is σ = 581518080. Its totient is φ = 43612992.

The previous prime is 190808729. The next prime is 190808743. The reversal of 190808730 is 37808091.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48589 + ... + 52368.

It is an arithmetic number, because the mean of its divisors is an integer number (9086220).

Almost surely, 2^190808730 is an apocalyptic number.

190808730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190808730 is an abundant number, since it is smaller than the sum of its proper divisors (390709350).

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

190808730 is a wasteful number, since it uses less digits than its factorization.

190808730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100980 (or 100974 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 190808730 is about 13813.3533220576. The cubic root of 190808730 is about 575.7042209718.

The spelling of 190808730 in words is "one hundred ninety million, eight hundred eight thousand, seven hundred thirty".