490033757 has 4 divisors (see below), whose sum is σ = 492521436. Its totient is φ = 487546080.

The previous prime is 490033751. The next prime is 490033783. The reversal of 490033757 is 757330094.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 757330094 = 2 ⋅378665047.

It can be written as a sum of positive squares in 2 ways, for example, as 432182521 + 57851236 = 20789^2 + 7606^2 .

It is a cyclic number.

It is not a de Polignac number, because 490033757 - 2⁸ = 490033501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 490033757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490033751) 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, 1243544 + ... + 1243937.

It is an arithmetic number, because the mean of its divisors is an integer number (123130359).

Almost surely, 2^490033757 is an apocalyptic number.

It is an amenable number.

490033757 is a deficient number, since it is larger than the sum of its proper divisors (2487679).

490033757 is a wasteful number, since it uses less digits than its factorization.

490033757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487678.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 490033757 is about 22136.7061009537. The cubic root of 490033757 is about 788.3916200613.

The spelling of 490033757 in words is "four hundred ninety million, thirty-three thousand, seven hundred fifty-seven".