190857216 has 120 divisors (see below), whose sum is σ = 556776864. Its totient is φ = 57671680.

The previous prime is 190857209. The next prime is 190857217. The reversal of 190857216 is 612758091.

It is not an unprimeable number, because it can be changed into a prime (190857217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540496 + ... + 540848.

Almost surely, 2^190857216 is an apocalyptic number.

190857216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190857216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278388432).

190857216 is an abundant number, since it is smaller than the sum of its proper divisors (365919648).

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

190857216 is an equidigital number, since it uses as much as digits as its factorization.

190857216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 190857216 is about 13815.1082514760. The cubic root of 190857216 is about 575.7529804998.

The spelling of 190857216 in words is "one hundred ninety million, eight hundred fifty-seven thousand, two hundred sixteen".