190273920 has 128 divisors (see below), whose sum is σ = 612563040. Its totient is φ = 50233344.

The previous prime is 190273913. The next prime is 190273921. The reversal of 190273920 is 29372091.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190273921) 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 15 ways as a sum of consecutive naturals, for example, 216522 + ... + 217398.

Almost surely, 2^190273920 is an apocalyptic number.

190273920 is a gapful number since it is divisible by the number (10) 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 190273920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306281520).

190273920 is an abundant number, since it is smaller than the sum of its proper divisors (422289120).

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

190273920 is a wasteful number, since it uses less digits than its factorization.

190273920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 190273920 is about 13793.9812962031. The cubic root of 190273920 is about 575.1658450410.

The spelling of 190273920 in words is "one hundred ninety million, two hundred seventy-three thousand, nine hundred twenty".