612369406 has 16 divisors (see below), whose sum is σ = 1015788528. Its totient is φ = 274536000.

The previous prime is 612369403. The next prime is 612369413. The reversal of 612369406 is 604963216.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612369403) 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, 189045 + ... + 192256.

It is an arithmetic number, because the mean of its divisors is an integer number (63486783).

Almost surely, 2^612369406 is an apocalyptic number.

612369406 is a deficient number, since it is larger than the sum of its proper divisors (403419122).

612369406 is a wasteful number, since it uses less digits than its factorization.

612369406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381387.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 612369406 is about 24746.0988036498. The cubic root of 612369406 is about 849.1892643310.

The spelling of 612369406 in words is "six hundred twelve million, three hundred sixty-nine thousand, four hundred six".