499970649 has 8 divisors (see below), whose sum is σ = 675759712. Its totient is φ = 328747680.

The previous prime is 499970623. The next prime is 499970659. The reversal of 499970649 is 946079994.

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

It is not a de Polignac number, because 499970649 - 2⁷ = 499970521 is a prime.

It is a super-2 number, since 2×499970649² = 499941299722962402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499970609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141267 + ... + 1141704.

It is an arithmetic number, because the mean of its divisors is an integer number (84469964).

Almost surely, 2^499970649 is an apocalyptic number.

It is an amenable number.

499970649 is a deficient number, since it is larger than the sum of its proper divisors (175789063).

499970649 is a wasteful number, since it uses less digits than its factorization.

499970649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283047.

The product of its (nonzero) digits is 4408992, while the sum is 57.

The square root of 499970649 is about 22360.0234570539. The cubic root of 499970649 is about 793.6849950774.

The spelling of 499970649 in words is "four hundred ninety-nine million, nine hundred seventy thousand, six hundred forty-nine".