623461212 has 288 divisors, whose sum is σ = 1954355200. Its totient is φ = 173210400.

The previous prime is 623461141. The next prime is 623461259. The reversal of 623461212 is 212164326.

623461212 is a `hidden beast` number, since 6 + 2 + 34 + 612 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20111637 + ... + 20111667.

Almost surely, 2^623461212 is an apocalyptic number.

623461212 is a gapful number since it is divisible by the number (62) 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 623461212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (977177600).

623461212 is an abundant number, since it is smaller than the sum of its proper divisors (1330893988).

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

623461212 is a wasteful number, since it uses less digits than its factorization.

623461212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 66 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 623461212 is about 24969.2052736966. The cubic root of 623461212 is about 854.2857192340.

The spelling of 623461212 in words is "six hundred twenty-three million, four hundred sixty-one thousand, two hundred twelve".