494155554 has 16 divisors (see below), whose sum is σ = 997058592. Its totient is φ = 163260608.

The previous prime is 494155547. The next prime is 494155559. The reversal of 494155554 is 455551494.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (494155559) 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, 363744 + ... + 365099.

It is an arithmetic number, because the mean of its divisors is an integer number (62316162).

Almost surely, 2^494155554 is an apocalyptic number.

494155554 is an abundant number, since it is smaller than the sum of its proper divisors (502903038).

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

494155554 is a wasteful number, since it uses less digits than its factorization.

494155554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728961.

The product of its digits is 360000, while the sum is 42.

The square root of 494155554 is about 22229.6098481282. The cubic root of 494155554 is about 790.5959046071.

The spelling of 494155554 in words is "four hundred ninety-four million, one hundred fifty-five thousand, five hundred fifty-four".