190440955 has 16 divisors (see below), whose sum is σ = 232888320. Its totient is φ = 149471712.

The previous prime is 190440949. The next prime is 190440959. The reversal of 190440955 is 559044091.

It is a cyclic number.

It is not a de Polignac number, because 190440955 - 2¹⁹ = 189916667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190440959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64522 + ... + 67408.

It is an arithmetic number, because the mean of its divisors is an integer number (14555520).

Almost surely, 2^190440955 is an apocalyptic number.

190440955 is a deficient number, since it is larger than the sum of its proper divisors (42447365).

190440955 is a wasteful number, since it uses less digits than its factorization.

190440955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 190440955 is about 13800.0346014059. The cubic root of 190440955 is about 575.3341019897.

The spelling of 190440955 in words is "one hundred ninety million, four hundred forty thousand, nine hundred fifty-five".