491926650 has 24 divisors (see below), whose sum is σ = 1219978464. Its totient is φ = 131180400.

The previous prime is 491926649. The next prime is 491926657. The reversal of 491926650 is 56629194.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (491926657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1639606 + ... + 1639905.

It is an arithmetic number, because the mean of its divisors is an integer number (50832436).

Almost surely, 2^491926650 is an apocalyptic number.

491926650 is an abundant number, since it is smaller than the sum of its proper divisors (728051814).

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

491926650 is a wasteful number, since it uses less digits than its factorization.

491926650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279526 (or 3279521 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 491926650 is about 22179.4195144959. The cubic root of 491926650 is about 789.4054437975.

The spelling of 491926650 in words is "four hundred ninety-one million, nine hundred twenty-six thousand, six hundred fifty".