423837081 has 24 divisors (see below), whose sum is σ = 649480104. Its totient is φ = 265420800.

The previous prime is 423837079. The next prime is 423837083. The reversal of 423837081 is 180738324.

It is an interprime number because it is at equal distance from previous prime (423837079) and next prime (423837083).

It can be written as a sum of positive squares in 4 ways, for example, as 272547081 + 151290000 = 16509^2 + 12300^2 .

It is not a de Polignac number, because 423837081 - 2¹ = 423837079 is a prime.

It is a super-2 number, since 2×423837081² = 359275742461201122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (423837083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85881 + ... + 90681.

It is an arithmetic number, because the mean of its divisors is an integer number (27061671).

Almost surely, 2^423837081 is an apocalyptic number.

It is an amenable number.

423837081 is a deficient number, since it is larger than the sum of its proper divisors (225643023).

423837081 is a wasteful number, since it uses less digits than its factorization.

423837081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5401 (or 5398 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 423837081 is about 20587.3038788473. The cubic root of 423837081 is about 751.1609167692.

The spelling of 423837081 in words is "four hundred twenty-three million, eight hundred thirty-seven thousand, eighty-one".