490745537 has 4 divisors (see below), whose sum is σ = 490941360. Its totient is φ = 490549716.

The previous prime is 490745491. The next prime is 490745557. The reversal of 490745537 is 735547094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490745537 is a prime.

It is a super-3 number, since 3×490745537³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490745557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94103 + ... + 99180.

It is an arithmetic number, because the mean of its divisors is an integer number (122735340).

Almost surely, 2^490745537 is an apocalyptic number.

It is an amenable number.

490745537 is a deficient number, since it is larger than the sum of its proper divisors (195823).

490745537 is a wasteful number, since it uses less digits than its factorization.

490745537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195822.

The product of its (nonzero) digits is 529200, while the sum is 44.

The square root of 490745537 is about 22152.7771848136. Note that the first 3 decimals coincide. The cubic root of 490745537 is about 788.7731515378.

The spelling of 490745537 in words is "four hundred ninety million, seven hundred forty-five thousand, five hundred thirty-seven".