494404437 has 4 divisors (see below), whose sum is σ = 659205920. Its totient is φ = 329602956.

The previous prime is 494404423. The next prime is 494404501. The reversal of 494404437 is 734404494.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 494404437 - 2⁶ = 494404373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 494404395 and 494404404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494404237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82400737 + ... + 82400742.

It is an arithmetic number, because the mean of its divisors is an integer number (164801480).

Almost surely, 2^494404437 is an apocalyptic number.

It is an amenable number.

494404437 is a deficient number, since it is larger than the sum of its proper divisors (164801483).

494404437 is a wasteful number, since it uses less digits than its factorization.

494404437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164801482.

The product of its (nonzero) digits is 193536, while the sum is 39.

The square root of 494404437 is about 22235.2071499233. The cubic root of 494404437 is about 790.7286110355.

The spelling of 494404437 in words is "four hundred ninety-four million, four hundred four thousand, four hundred thirty-seven".