612392401 has 8 divisors (see below), whose sum is σ = 653455520. Its totient is φ = 572212512.

The previous prime is 612392387. The next prime is 612392419. The reversal of 612392401 is 104293216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-612392401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 612392401.

It is not an unprimeable number, because it can be changed into a prime (612392461) 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, 219375 + ... + 222148.

It is an arithmetic number, because the mean of its divisors is an integer number (81681940).

Almost surely, 2^612392401 is an apocalyptic number.

It is an amenable number.

612392401 is a deficient number, since it is larger than the sum of its proper divisors (41063119).

612392401 is a wasteful number, since it uses less digits than its factorization.

612392401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441615.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 612392401 is about 24746.5634179779. The cubic root of 612392401 is about 849.1998934614.

The spelling of 612392401 in words is "six hundred twelve million, three hundred ninety-two thousand, four hundred one".