190023693 has 8 divisors (see below), whose sum is σ = 266700000. Its totient is φ = 120014928.

The previous prime is 190023667. The next prime is 190023727. The reversal of 190023693 is 396320091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190023693 - 2⁶ = 190023629 is a prime.

It is a super-2 number, since 2×190023693² = 72218007802716498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190023593) 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, 1666818 + ... + 1666931.

It is an arithmetic number, because the mean of its divisors is an integer number (33337500).

Almost surely, 2^190023693 is an apocalyptic number.

It is an amenable number.

190023693 is a deficient number, since it is larger than the sum of its proper divisors (76676307).

190023693 is a wasteful number, since it uses less digits than its factorization.

190023693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333771.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 190023693 is about 13784.9081607387. The cubic root of 190023693 is about 574.9136031501.

The spelling of 190023693 in words is "one hundred ninety million, twenty-three thousand, six hundred ninety-three".