190350864 has 160 divisors (see below), whose sum is σ = 611210880. Its totient is φ = 56217600.

The previous prime is 190350817. The next prime is 190350869. The reversal of 190350864 is 468053091.

190350864 is a `hidden beast` number, since 1 + 90 + 3 + 508 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (190350869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194344 + ... + 195320.

It is an arithmetic number, because the mean of its divisors is an integer number (3820068).

Almost surely, 2^190350864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190350864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305605440).

190350864 is an abundant number, since it is smaller than the sum of its proper divisors (420860016).

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

190350864 is a wasteful number, since it uses less digits than its factorization.

190350864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 190350864 is about 13796.7700567923. The cubic root of 190350864 is about 575.2433641543.

The spelling of 190350864 in words is "one hundred ninety million, three hundred fifty thousand, eight hundred sixty-four".