612320430 has 32 divisors (see below), whose sum is σ = 1503748224. Its totient is φ = 159487776.

The previous prime is 612320419. The next prime is 612320431. The reversal of 612320430 is 34023216.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 612320397 and 612320406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612320431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236044 + ... + 238623.

It is an arithmetic number, because the mean of its divisors is an integer number (46992132).

Almost surely, 2^612320430 is an apocalyptic number.

612320430 is an abundant number, since it is smaller than the sum of its proper divisors (891427794).

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

612320430 is a wasteful number, since it uses less digits than its factorization.

612320430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474720.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 612320430 is about 24745.1092137416. The cubic root of 612320430 is about 849.1666249449.

Adding to 612320430 its reverse (34023216), we get a palindrome (646343646).

The spelling of 612320430 in words is "six hundred twelve million, three hundred twenty thousand, four hundred thirty".