499890437 has 16 divisors (see below), whose sum is σ = 539837760. Its totient is φ = 461365632.

The previous prime is 499890431. The next prime is 499890473. The reversal of 499890437 is 734098994.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 499890437 - 2¹⁶ = 499824901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499890431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533033 + ... + 533969.

It is an arithmetic number, because the mean of its divisors is an integer number (33739860).

Almost surely, 2^499890437 is an apocalyptic number.

It is an amenable number.

499890437 is a deficient number, since it is larger than the sum of its proper divisors (39947323).

499890437 is a wasteful number, since it uses less digits than its factorization.

499890437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 499890437 is about 22358.2297376156. The cubic root of 499890437 is about 793.6425482753.

The spelling of 499890437 in words is "four hundred ninety-nine million, eight hundred ninety thousand, four hundred thirty-seven".