1840304190 has 32 divisors (see below), whose sum is σ = 4423540896. Its totient is φ = 489991040.

The previous prime is 1840304183. The next prime is 1840304201. The reversal of 1840304190 is 914030481.

It is a happy number.

It is a super-2 number, since 2×1840304190² = 6773439023463112200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27381 + ... + 66560.

It is an arithmetic number, because the mean of its divisors is an integer number (138235653).

Almost surely, 2^1840304190 is an apocalyptic number.

1840304190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1840304190 is an abundant number, since it is smaller than the sum of its proper divisors (2583236706).

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

1840304190 is a wasteful number, since it uses less digits than its factorization.

1840304190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94604.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1840304190 is about 42898.7667654911. The cubic root of 1840304190 is about 1225.4526584814.

The spelling of 1840304190 in words is "one billion, eight hundred forty million, three hundred four thousand, one hundred ninety".