199926430 has 16 divisors (see below), whose sum is σ = 392583024. Its totient is φ = 72700480.

The previous prime is 199926403. The next prime is 199926431. The reversal of 199926430 is 34629991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199926431) 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, 908647 + ... + 908866.

It is an arithmetic number, because the mean of its divisors is an integer number (24536439).

Almost surely, 2^199926430 is an apocalyptic number.

199926430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199926430 is a deficient number, since it is larger than the sum of its proper divisors (192656594).

199926430 is a wasteful number, since it uses less digits than its factorization.

199926430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817531.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 199926430 is about 14139.5342921894. The cubic root of 199926430 is about 584.7318321867.

It can be divided in two parts, 199 and 926430, that added together give a palindrome (926629).

The spelling of 199926430 in words is "one hundred ninety-nine million, nine hundred twenty-six thousand, four hundred thirty".