612214240 has 48 divisors (see below), whose sum is σ = 1577847600. Its totient is φ = 222622720.

The previous prime is 612214237. The next prime is 612214243. The reversal of 612214240 is 42412216.

It is a happy number.

612214240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (612214237) and next prime (612214243).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612214243) 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, 172165 + ... + 175684.

It is an arithmetic number, because the mean of its divisors is an integer number (32871825).

Almost surely, 2^612214240 is an apocalyptic number.

It is an amenable number.

612214240 is an abundant number, since it is smaller than the sum of its proper divisors (965633360).

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

612214240 is a wasteful number, since it uses less digits than its factorization.

612214240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347875 (or 347867 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 612214240 is about 24742.9634441794. The cubic root of 612214240 is about 849.1175339719.

Adding to 612214240 its reverse (42412216), we get a palindrome (654626456).

The spelling of 612214240 in words is "six hundred twelve million, two hundred fourteen thousand, two hundred forty".