190920054 has 32 divisors (see below), whose sum is σ = 414870624. Its totient is φ = 58222080.

The previous prime is 190920053. The next prime is 190920061. The reversal of 190920054 is 450029091.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190920053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2017 + ... + 19644.

It is an arithmetic number, because the mean of its divisors is an integer number (12964707).

Almost surely, 2^190920054 is an apocalyptic number.

190920054 is an abundant number, since it is smaller than the sum of its proper divisors (223950570).

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

190920054 is a wasteful number, since it uses less digits than its factorization.

190920054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21792.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 190920054 is about 13817.3823135933. The cubic root of 190920054 is about 575.8161607080.

The spelling of 190920054 in words is "one hundred ninety million, nine hundred twenty thousand, fifty-four".