190320450 has 24 divisors (see below), whose sum is σ = 471995088. Its totient is φ = 50752080.

The previous prime is 190320443. The next prime is 190320463. The reversal of 190320450 is 54023091.

It is a self number, because there is not a number n which added to its sum of digits gives 190320450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 634252 + ... + 634551.

It is an arithmetic number, because the mean of its divisors is an integer number (19666462).

Almost surely, 2^190320450 is an apocalyptic number.

190320450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190320450 is an abundant number, since it is smaller than the sum of its proper divisors (281674638).

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

190320450 is a wasteful number, since it uses less digits than its factorization.

190320450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268818 (or 1268813 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 190320450 is about 13795.6677982619. The cubic root of 190320450 is about 575.2127253238.

The spelling of 190320450 in words is "one hundred ninety million, three hundred twenty thousand, four hundred fifty".