495019749 has 48 divisors (see below), whose sum is σ = 821091840. Its totient is φ = 259135200.

The previous prime is 495019747. The next prime is 495019769. The reversal of 495019749 is 947910594.

It is not a de Polignac number, because 495019749 - 2¹ = 495019747 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 495019698 and 495019707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495019747) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 382794 + ... + 384084.

It is an arithmetic number, because the mean of its divisors is an integer number (17106080).

Almost surely, 2^495019749 is an apocalyptic number.

It is an amenable number.

495019749 is a deficient number, since it is larger than the sum of its proper divisors (326072091).

495019749 is a wasteful number, since it uses less digits than its factorization.

495019749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 495019749 is about 22249.0392826297. The cubic root of 495019749 is about 791.0565093192.

The spelling of 495019749 in words is "four hundred ninety-five million, nineteen thousand, seven hundred forty-nine".