490057837 has 4 divisors (see below), whose sum is σ = 490113180. Its totient is φ = 490002496.

The previous prime is 490057831. The next prime is 490057853. The reversal of 490057837 is 738750094.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 738750094 = 2 ⋅369375047.

It can be written as a sum of positive squares in 2 ways, for example, as 39175081 + 450882756 = 6259^2 + 21234^2 .

It is a 3-Lehmer number, since φ(490057837) divides (490057837-1)³.

It is a cyclic number.

It is not a de Polignac number, because 490057837 - 2²³ = 481669229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 490057793 and 490057802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490057831) 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, 11068 + ... + 33205.

It is an arithmetic number, because the mean of its divisors is an integer number (122528295).

It is a Poulet number, since it divides 2^490057836-1.

Almost surely, 2^490057837 is an apocalyptic number.

490057837 is the 11069-th decagonal number.

It is an amenable number.

490057837 is a deficient number, since it is larger than the sum of its proper divisors (55343).

490057837 is a wasteful number, since it uses less digits than its factorization.

490057837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55342.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 490057837 is about 22137.2499872952. The cubic root of 490057837 is about 788.4045335657.

The spelling of 490057837 in words is "four hundred ninety million, fifty-seven thousand, eight hundred thirty-seven".