212430654 has 16 divisors (see below), whose sum is σ = 472068240. Its totient is φ = 70810200.

The previous prime is 212430649. The next prime is 212430671. The reversal of 212430654 is 456034212.

212430654 is a `hidden beast` number, since 2 + 1 + 2 + 4 + 3 + 0 + 654 = 666.

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

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1966897 + ... + 1967004.

It is an arithmetic number, because the mean of its divisors is an integer number (29504265).

Almost surely, 2^212430654 is an apocalyptic number.

212430654 is an abundant number, since it is smaller than the sum of its proper divisors (259637586).

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

212430654 is a wasteful number, since it uses less digits than its factorization.

212430654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3933912 (or 3933906 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 212430654 is about 14575.0009948542. Note that the first 3 decimals coincide. The cubic root of 212430654 is about 596.6766765206.

Adding to 212430654 its reverse (456034212), we get a palindrome (668464866).

The spelling of 212430654 in words is "two hundred twelve million, four hundred thirty thousand, six hundred fifty-four".