494997057 has 12 divisors (see below), whose sum is σ = 738060544. Its totient is φ = 319352760.

The previous prime is 494997049. The next prime is 494997067. The reversal of 494997057 is 750799494.

It is not a de Polignac number, because 494997057 - 2³ = 494997049 is a prime.

It is a super-2 number, since 2×494997057² = 490044172877322498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 494996994 and 494997012.

It is not an unprimeable number, because it can be changed into a prime (494997017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 886813 + ... + 887370.

Almost surely, 2^494997057 is an apocalyptic number.

It is an amenable number.

494997057 is a deficient number, since it is larger than the sum of its proper divisors (243063487).

494997057 is a wasteful number, since it uses less digits than its factorization.

494997057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774220 (or 1774217 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The square root of 494997057 is about 22248.5293221822. The cubic root of 494997057 is about 791.0444216341.

The spelling of 494997057 in words is "four hundred ninety-four million, nine hundred ninety-seven thousand, fifty-seven".