199402377 has 16 divisors (see below), whose sum is σ = 271911168. Its totient is φ = 129933440.

The previous prime is 199402369. The next prime is 199402391. The reversal of 199402377 is 773204991.

199402377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 199402377 - 2³ = 199402369 is a prime.

It is a super-2 number, since 2×199402377² = 79522615906500258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (199402337) 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, 42448 + ... + 46910.

It is an arithmetic number, because the mean of its divisors is an integer number (16994448).

Almost surely, 2^199402377 is an apocalyptic number.

It is an amenable number.

199402377 is a deficient number, since it is larger than the sum of its proper divisors (72508791).

199402377 is a wasteful number, since it uses less digits than its factorization.

199402377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 199402377 is about 14120.9906522170. The cubic root of 199402377 is about 584.2204797475.

The spelling of 199402377 in words is "one hundred ninety-nine million, four hundred two thousand, three hundred seventy-seven".