190573840 has 20 divisors (see below), whose sum is σ = 443084364. Its totient is φ = 76229504.

The previous prime is 190573813. The next prime is 190573841. The reversal of 190573840 is 48375091.

It can be written as a sum of positive squares in 2 ways, for example, as 57032704 + 133541136 = 7552^2 + 11556^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 190573840.

It is not an unprimeable number, because it can be changed into a prime (190573841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191007 + ... + 1191166.

Almost surely, 2^190573840 is an apocalyptic number.

190573840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190573840 is an abundant number, since it is smaller than the sum of its proper divisors (252510524).

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

190573840 is a wasteful number, since it uses less digits than its factorization.

190573840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382186 (or 2382180 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 190573840 is about 13804.8484236517. The cubic root of 190573840 is about 575.4678888576.

The spelling of 190573840 in words is "one hundred ninety million, five hundred seventy-three thousand, eight hundred forty".