190473849 has 14 divisors (see below), whose sum is σ = 285581226. Its totient is φ = 126982080.

The previous prime is 190473847. The next prime is 190473911. The reversal of 190473849 is 948374091.

It can be written as a sum of positive squares in only one way, i.e., 131675625 + 58798224 = 11475^2 + 7668^2 .

It is not a de Polignac number, because 190473849 - 2¹ = 190473847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190473847) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 129912 + ... + 131369.

It is an arithmetic number, because the mean of its divisors is an integer number (20398659).

Almost surely, 2^190473849 is an apocalyptic number.

It is an amenable number.

190473849 is a deficient number, since it is larger than the sum of its proper divisors (95107377).

190473849 is an frugal number, since it uses more digits than its factorization.

190473849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261299 (or 261284 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 190473849 is about 13801.2263585523. The cubic root of 190473849 is about 575.3672250303.

The spelling of 190473849 in words is "one hundred ninety million, four hundred seventy-three thousand, eight hundred forty-nine".