1828446681 has 16 divisors (see below), whose sum is σ = 2529635840. Its totient is φ = 1173519360.

The previous prime is 1828446677. The next prime is 1828446689. The reversal of 1828446681 is 1866448281.

It is a happy number.

It is not a de Polignac number, because 1828446681 - 2² = 1828446677 is a prime.

It is a super-2 number, since 2×1828446681² = 6686434530519831522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1828446681.

It is not an unprimeable number, because it can be changed into a prime (1828446689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32986 + ... + 68883.

It is an arithmetic number, because the mean of its divisors is an integer number (158102240).

Almost surely, 2^1828446681 is an apocalyptic number.

It is an amenable number.

1828446681 is a deficient number, since it is larger than the sum of its proper divisors (701189159).

1828446681 is a wasteful number, since it uses less digits than its factorization.

1828446681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102096.

The product of its digits is 589824, while the sum is 48.

The square root of 1828446681 is about 42760.3400477592. The cubic root of 1828446681 is about 1222.8150263117.

The spelling of 1828446681 in words is "one billion, eight hundred twenty-eight million, four hundred forty-six thousand, six hundred eighty-one".