623432012 has 24 divisors (see below), whose sum is σ = 1248979200. Its totient is φ = 266731920.

The previous prime is 623432011. The next prime is 623432023. The reversal of 623432012 is 210234326.

It is not an unprimeable number, because it can be changed into a prime (623432011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814 + ... + 35357.

It is an arithmetic number, because the mean of its divisors is an integer number (52040800).

Almost surely, 2^623432012 is an apocalyptic number.

It is an amenable number.

623432012 is an abundant number, since it is smaller than the sum of its proper divisors (625547188).

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

623432012 is a wasteful number, since it uses less digits than its factorization.

623432012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37781 (or 37779 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 623432012 is about 24968.6205465981. The cubic root of 623432012 is about 854.2723821132.

Adding to 623432012 its reverse (210234326), we get a palindrome (833666338).

The spelling of 623432012 in words is "six hundred twenty-three million, four hundred thirty-two thousand, twelve".