1830457445 has 8 divisors (see below), whose sum is σ = 2197933944. Its totient is φ = 1463442624.

The previous prime is 1830457429. The next prime is 1830457457. The reversal of 1830457445 is 5447540381.

It can be written as a sum of positive squares in 4 ways, for example, as 243391201 + 1587066244 = 15601^2 + 39838^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1830457445 - 2⁴ = 1830457429 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 106634 + ... + 122603.

It is an arithmetic number, because the mean of its divisors is an integer number (274741743).

Almost surely, 2^1830457445 is an apocalyptic number.

It is an amenable number.

1830457445 is a deficient number, since it is larger than the sum of its proper divisors (367476499).

1830457445 is a wasteful number, since it uses less digits than its factorization.

1830457445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230839.

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 1830457445 is about 42783.8456078927. The cubic root of 1830457445 is about 1223.2631100483.

The spelling of 1830457445 in words is "one billion, eight hundred thirty million, four hundred fifty-seven thousand, four hundred forty-five".