1800423097 has 16 divisors (see below), whose sum is σ = 2103019200. Its totient is φ = 1523146240.

The previous prime is 1800423073. The next prime is 1800423127. The reversal of 1800423097 is 7903240081.

It is a de Polignac number, because none of the positive numbers 2^k-1800423097 is a prime.

It is a super-2 number, since 2×1800423097² = 6483046656422142818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1800423047) 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, 37447 + ... + 70732.

It is an arithmetic number, because the mean of its divisors is an integer number (131438700).

Almost surely, 2^1800423097 is an apocalyptic number.

1800423097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1800423097 is a deficient number, since it is larger than the sum of its proper divisors (302596103).

1800423097 is a wasteful number, since it uses less digits than its factorization.

1800423097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108296.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1800423097 is about 42431.3928241815. The cubic root of 1800423097 is about 1216.5357013302.

The spelling of 1800423097 in words is "one billion, eight hundred million, four hundred twenty-three thousand, ninety-seven".