612430400 has 42 divisors (see below), whose sum is σ = 1506965490. Its totient is φ = 244971520.

The previous prime is 612430397. The next prime is 612430409. The reversal of 612430400 is 4034216.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 25240576 + 587189824 = 5024^2 + 24232^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (612430409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 189785 + ... + 192984.

Almost surely, 2^612430400 is an apocalyptic number.

It is an amenable number.

612430400 is an abundant number, since it is smaller than the sum of its proper divisors (894535090).

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

612430400 is a wasteful number, since it uses less digits than its factorization.

612430400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382791 (or 382776 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 612430400 is about 24747.3311692392. The cubic root of 612430400 is about 849.2174574064.

Adding to 612430400 its reverse (4034216), we get a palindrome (616464616).

The spelling of 612430400 in words is "six hundred twelve million, four hundred thirty thousand, four hundred".