190500040 has 16 divisors (see below), whose sum is σ = 428625180. Its totient is φ = 76200000.

The previous prime is 190500031. The next prime is 190500059. The reversal of 190500040 is 40005091.

190500040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 189943524 + 556516 = 13782^2 + 746^2 .

It is a junction number, because it is equal to n+sod(n) for n = 190499990 and 190500017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2381211 + ... + 2381290.

Almost surely, 2^190500040 is an apocalyptic number.

190500040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190500040 is an abundant number, since it is smaller than the sum of its proper divisors (238125140).

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

190500040 is a wasteful number, since it uses less digits than its factorization.

190500040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4762512 (or 4762508 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 190500040 is about 13802.1751908893. The cubic root of 190500040 is about 575.3935956711.

The spelling of 190500040 in words is "one hundred ninety million, five hundred thousand, forty".