190049930 has 24 divisors (see below), whose sum is σ = 397942308. Its totient is φ = 65159808.

The previous prime is 190049917. The next prime is 190049941. The reversal of 190049930 is 39940091.

It can be written as a sum of positive squares in 2 ways, for example, as 174847729 + 15202201 = 13223^2 + 3899^2 .

It is a super-2 number, since 2×190049930² = 72237951786009800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193439 + ... + 194418.

Almost surely, 2^190049930 is an apocalyptic number.

190049930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190049930 is an abundant number, since it is smaller than the sum of its proper divisors (207892378).

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

190049930 is a wasteful number, since it uses less digits than its factorization.

190049930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387878 (or 387871 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 190049930 is about 13785.8597845764. The cubic root of 190049930 is about 574.9400618052.

The spelling of 190049930 in words is "one hundred ninety million, forty-nine thousand, nine hundred thirty".