199429420 has 48 divisors (see below), whose sum is σ = 426535200. Its totient is φ = 78312960.

The previous prime is 199429387. The next prime is 199429427. The reversal of 199429420 is 24924991.

199429420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (199429427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321871 + ... + 322489.

It is an arithmetic number, because the mean of its divisors is an integer number (8886150).

Almost surely, 2^199429420 is an apocalyptic number.

199429420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199429420 is an abundant number, since it is smaller than the sum of its proper divisors (227105780).

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

199429420 is a wasteful number, since it uses less digits than its factorization.

199429420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 199429420 is about 14121.9481658870. The cubic root of 199429420 is about 584.2468892626.

The spelling of 199429420 in words is "one hundred ninety-nine million, four hundred twenty-nine thousand, four hundred twenty".