190340887 has 8 divisors (see below), whose sum is σ = 207905040. Its totient is φ = 172820160.

The previous prime is 190340881. The next prime is 190340911. The reversal of 190340887 is 788043091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 190340887 - 2²³ = 181952279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190340881) 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, 1318 + ... + 19555.

It is an arithmetic number, because the mean of its divisors is an integer number (25988130).

Almost surely, 2^190340887 is an apocalyptic number.

190340887 is a deficient number, since it is larger than the sum of its proper divisors (17564153).

190340887 is a wasteful number, since it uses less digits than its factorization.

190340887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21713.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 190340887 is about 13796.4084819202. The cubic root of 190340887 is about 575.2333137607.

The spelling of 190340887 in words is "one hundred ninety million, three hundred forty thousand, eight hundred eighty-seven".