1844072801 has 4 divisors (see below), whose sum is σ = 1844202900. Its totient is φ = 1843942704.

The previous prime is 1844072779. The next prime is 1844072819. The reversal of 1844072801 is 1082704481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1082704481 = 31 ⋅34925951.

It can be written as a sum of positive squares in 2 ways, for example, as 302725201 + 1541347600 = 17399^2 + 39260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1844072801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1844072821) 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, 40766 + ... + 73143.

It is an arithmetic number, because the mean of its divisors is an integer number (461050725).

Almost surely, 2^1844072801 is an apocalyptic number.

It is an amenable number.

1844072801 is a deficient number, since it is larger than the sum of its proper divisors (130099).

1844072801 is a wasteful number, since it uses less digits than its factorization.

1844072801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130098.

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 1844072801 is about 42942.6687689529. The cubic root of 1844072801 is about 1226.2885901215.

The spelling of 1844072801 in words is "one billion, eight hundred forty-four million, seventy-two thousand, eight hundred one".