423061236 has 72 divisors (see below), whose sum is σ = 1156124424. Its totient is φ = 129669120.

The previous prime is 423061231. The next prime is 423061307. The reversal of 423061236 is 632160324.

423061236 is a `hidden beast` number, since 42 + 3 + 0 + 612 + 3 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 104652900 + 318408336 = 10230^2 + 17844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423061231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129900 + ... + 133116.

Almost surely, 2^423061236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423061236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (578062212).

423061236 is an abundant number, since it is smaller than the sum of its proper divisors (733063188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423061236 is a wasteful number, since it uses less digits than its factorization.

423061236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3521 (or 3516 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 423061236 is about 20568.4524454321. The cubic root of 423061236 is about 750.7022968336.

The spelling of 423061236 in words is "four hundred twenty-three million, sixty-one thousand, two hundred thirty-six".