236490012 has 72 divisors (see below), whose sum is σ = 674659440. Its totient is φ = 69189120.

The previous prime is 236489993. The next prime is 236490019. The reversal of 236490012 is 210094632.

236490012 is a `hidden beast` number, since 2 + 3 + 649 + 0 + 0 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (236490019) 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, 1188 + ... + 21780.

It is an arithmetic number, because the mean of its divisors is an integer number (9370270).

Almost surely, 2^236490012 is an apocalyptic number.

236490012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 236490012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337329720).

236490012 is an abundant number, since it is smaller than the sum of its proper divisors (438169428).

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

236490012 is a wasteful number, since it uses less digits than its factorization.

236490012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20643 (or 20638 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 236490012 is about 15378.2317579103. The cubic root of 236490012 is about 618.4020697113.

The spelling of 236490012 in words is "two hundred thirty-six million, four hundred ninety thousand, twelve".