1833872401 has 4 divisors (see below), whose sum is σ = 1841743332. Its totient is φ = 1826001472.

The previous prime is 1833872387. The next prime is 1833872423. The reversal of 1833872401 is 1042783381.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1276204176 + 557668225 = 35724^2 + 23615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1833872401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1833872431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3935116 + ... + 3935581.

It is an arithmetic number, because the mean of its divisors is an integer number (460435833).

Almost surely, 2^1833872401 is an apocalyptic number.

It is an amenable number.

1833872401 is a deficient number, since it is larger than the sum of its proper divisors (7870931).

1833872401 is an equidigital number, since it uses as much as digits as its factorization.

1833872401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7870930.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1833872401 is about 42823.7364203545. The cubic root of 1833872401 is about 1224.0233561782.

The spelling of 1833872401 in words is "one billion, eight hundred thirty-three million, eight hundred seventy-two thousand, four hundred one".