199378354 has 32 divisors (see below), whose sum is σ = 350064000. Its totient is φ = 85130640.

The previous prime is 199378349. The next prime is 199378357. The reversal of 199378354 is 453873991.

199378354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 199378298 and 199378307.

It is not an unprimeable number, because it can be changed into a prime (199378357) 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, 348889 + ... + 349459.

It is an arithmetic number, because the mean of its divisors is an integer number (10939500).

Almost surely, 2^199378354 is an apocalyptic number.

199378354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

199378354 is a deficient number, since it is larger than the sum of its proper divisors (150685646).

199378354 is an equidigital number, since it uses as much as digits as its factorization.

199378354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 1089 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The square root of 199378354 is about 14120.1400134701. The cubic root of 199378354 is about 584.1970174858.

The spelling of 199378354 in words is "one hundred ninety-nine million, three hundred seventy-eight thousand, three hundred fifty-four".