612194038 has 8 divisors (see below), whose sum is σ = 972308232. Its totient is φ = 288091296.

The previous prime is 612194029. The next prime is 612194057. The reversal of 612194038 is 830491216.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 18005707 = 612194038 / (6 + 1 + 2 + 1 + 9 + 4 + 0 + 3 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 612193994 and 612194012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9002820 + ... + 9002887.

It is an arithmetic number, because the mean of its divisors is an integer number (121538529).

Almost surely, 2^612194038 is an apocalyptic number.

612194038 is a deficient number, since it is larger than the sum of its proper divisors (360114194).

612194038 is a wasteful number, since it uses less digits than its factorization.

612194038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18005726.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 612194038 is about 24742.5552035355. Note that the first 3 decimals coincide. The cubic root of 612194038 is about 849.1081940710.

The spelling of 612194038 in words is "six hundred twelve million, one hundred ninety-four thousand, thirty-eight".