190440016 has 30 divisors (see below), whose sum is σ = 399549390. Its totient is φ = 87894144.

The previous prime is 190440011. The next prime is 190440017. The reversal of 190440016 is 610044091.

190440016 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 3 ways, for example, as 16 + 190440000 = 4^2 + 13800^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190440011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32511 + ... + 37918.

It is an arithmetic number, because the mean of its divisors is an integer number (13318313).

Almost surely, 2^190440016 is an apocalyptic number.

190440016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

190440016 is an abundant number, since it is smaller than the sum of its proper divisors (209109374).

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

190440016 is a wasteful number, since it uses less digits than its factorization.

190440016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70463 (or 70444 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 190440016 is about 13800.0005797101. Note that the first 3 decimals coincide. The cubic root of 190440016 is about 575.3331563955. Note that the first 3 decimals are identical.

It can be divided in two parts, 1904400 and 16, that multiplied together give a square (30470400 = 5520²).

The spelling of 190440016 in words is "one hundred ninety million, four hundred forty thousand, sixteen".